An efficient and non-locational redstone dust implementation
Alternate Current is an efficient and non-locational redstone dust implementation. Its main focus lies in reducing the lag caused by redstone dust, by optimizing the power calculations and reducing the number of shape and block updates emitted. As a side effect of these changes the block update order of redstone dust networks is predictable and intuitive rather than locational and chaotic.
MSPT contributions of redstone dust are up to 30 times lower with Alternate Current, all the while maintaining a high level of Vanilla parity. Its low number of code modifications make it minimally invasive, so it's an easy drop-in replacement for Vanilla redstone dust.
Check out the GitHub page for a detailed explanation of Alternate Current's improvements.
There are two main reasons why redstone dust is laggy: unnecessary updates and unnecessary calculations, both of which are caused by the fact that redstone dust updates recursively. A redstone wire can update its power level over half a dozen times before settling on the final value, doing expensive calculations and emitting copious amounts of shape and block updates each time. On top of that, many shape and block updates are completely redundant.
Alternate Current fixes these issues by doing power calculations of the entire network before updating the power levels. Each wire will check power from non-wire components just once and power from other wires just twice. Power sources within the network are identified, and the power is spread from there. This makes the calculations more efficient and the update order more intuitive. Shape and block updates are only emitted when the final power level is reached, and each wire emits no redundant updates.
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17.06.2026 · Modrinth
updated to Minecraft 26.2
Screenshots and images from the original Modrinth page.
The project author has not added a gallery on Modrinth.
Published versions and original Modrinth files.
17.06.2026 · 2 543 downloads
updated to Minecraft 26.2
16.06.2026 · 77 666 downloads
updated to Minecraft 26.2
04.04.2026 · 7 489 downloads
updated to Minecraft 26.1
24.03.2026 · 134 162 downloads
updated to Minecraft 26.1
12.12.2025 · 8 352 downloads
updated to Minecraft 1.21.11
09.12.2025 · 453 208 downloads
updated to Minecraft 1.21.11
01.10.2025 · 4 190 downloads
updated to Minecraft 1.21.9
30.09.2025 · 95 922 downloads
updated to Minecraft 1.21.9
26.03.2025 · 8 326 downloads
updated to Minecraft 1.21.5
26.03.2025 · 2 465 downloads
Fixed incompatibility with Minecraft 1.21.4.
26.03.2025 · 223 006 downloads
updated to Minecraft 1.21.5
15.02.2025 · 631 downloads
Fixed redstone not working at y=319.
15.02.2025 · 112 779 downloads
Fixed redstone not working at y=319.
02.12.2024 · 1 122 downloads
updated to Minecraft 1.21.2/1.21.3
22.10.2024 · 44 990 downloads
updated to Minecraft 1.21.2
26.08.2024 · 785 633 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 731 749 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 3 191 548 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 15 858 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 5 677 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 3 063 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 25 302 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 926 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 2 925 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 283 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 5 931 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 232 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 333 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 428 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 2 805 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 2 072 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 505 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 348 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 149 downloads
New optimizations bring performance increases ranging from 2%-35%.
26.08.2024 · 142 downloads
New optimizations bring performance increases ranging from 2%-35%.
21.08.2024 · 3 029 downloads
20.08.2024 · 898 downloads
22.06.2024 · 101 494 downloads
From this version onward Alternate Current saves a config file to save and restore certain settings across game start-ups. This config file is stored in the world save directory, at <world root>/alternate-current.conf. The settings are saved on a per-world basis, and changing any settings in one world no longer affects them in another world.
At the moment the only settings are
- enabled: true if the mod is enabled, false if it is disabled.
- update-order: one of horizontal_first_outwards, horizontal_first_inwards, vertical_first_outwards, vertical_first_inwards. More details about this new feature below.
This update introduces a new feature that allows users to change the block update order that Alternate Current uses. This can subtly change behavior in some circuits that are sensitive to the block update around wire networks. The default update order used is identical to that of previous releases, so circuits that were built in previous versions will still work the same.
There are 4 available update orders:
- horizontal_first_outwards: Update direct neighbors first, then diagonal neighbors, and lastly far out neighbors, where the order within each layer is derived from the basic order [ front - back - right - left - down - up ]
- horizontal_first_inwards: Update far out neighbors first, then diagonal neighbors, and lastly direct neighbors, where the order within each layer is derived from the basic order [ front - back - right - left - down - up ]
- vertical_first_outwards: Update direct neighbors first, then diagonal neighbors, and lastly far out neighbors, where the order within each layer is derived from the basic order [ down - up - front - back - right - left ]
- vertical_first_inwards: Update far out neighbors first, then diagonal neighbors, and lastly direct neighbors, where the order within each layer is derived from the basic order [ down - up - front - back - right - left ]
The details for each update order can be found in the source.
The /alternatecurrent command gains new sub-commands that can be used to query and set the update order.
- /alternatecurrent updateOrder: queries the current update order
- /alternatecurrent updateOrder <update order>: sets the update order to the given value
19.05.2024 · 383 790 downloads
In this Beta, the on/off state of the mod is saved in the per-world config. That means the on/off state will no longer reset after reloading the world, and changing the on/off state in one world will no longer affect other worlds.
The config is stored at <world root>/alternate-current.conf, and the on/off state is saved in the enabled entry. Setting its value to TRUE will turn Alternate Current on for that world, whereas FALSE will turn it off.
You can of course still change the on/off state with the /alternatecurrent command as well, and doing so will update that world's config.
09.05.2024 · 24 528 downloads
Fixes a Mixin crash in 1.20-1.20.2
08.05.2024 · 660 downloads
Fixes a crash on Minecraft 1.20.4 and below.
08.05.2024 · 278 downloads
This beta introduces a new feature that allows users to change the block update order that Alternate Current uses. This can subtly change behavior in some circuits that are sensitive to the block update order around individual wires. The default update order used is identical to that of previous releases, so circuits that were built in previous versions will still work the same.
In this Beta there are 4 available update orders:
- horizontal_first_outwards: Update direct neighbors first, then diagonal neighbors, and lastly far out neighbors, where the order within each layer is derived from the basic order [ front - back - right - left - down - up ]
- - horizontal_first_inwards: Update far out neighbors first, then diagonal neighbors, and lastly direct neighbors, where the order within each layer is derived from the basic order [ front - back - right - left - down - up ]
- vertical_first_outwards: Update direct neighbors first, then diagonal neighbors, and lastly far out neighbors, where the order within each layer is derived from the basic order [ down - up - front - back - right - left ]
- vertical_first_inwards: Update far out neighbors first, then diagonal neighbors, and lastly direct neighbors, where the order within each layer is derived from the basic order [ down - up - front - back - right - left ]
The details for each update order can be found in the source.
The update order can be changed on a per-world basis, and will remain changed upon game restarts. The update order used will be saved to a alternate-current.conf file in the world save directory.
The /alternatecurrent command gains new sub-commands that can be used to query and set the update order.
- /alternatecurrent updateOrder: queries the current update order
- /alternatecurrent updateOrder <update order>: sets the update order to the given value
25.08.2023 · 2 835 354 downloads
updated to Minecraft 1.20
21.07.2023 · 509 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 2 137 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 227 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 224 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 239 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 859 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 956 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 266 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 232 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 179 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 188 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 399 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 1 925 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 275 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.07.2023 · 352 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
25.06.2023 · 825 262 downloads
25.06.2023 · 89 522 downloads
25.06.2023 · 5 280 downloads
25.06.2023 · 1 279 downloads
25.06.2023 · 6 363 downloads
25.06.2023 · 643 downloads
25.06.2023 · 727 downloads
25.06.2023 · 436 818 downloads
07.06.2023 · 19 076 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 9 858 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 199 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 113 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 177 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 79 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 71 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
07.06.2023 · 1 291 downloads
Note: Alternate Current does not and can not optimize other mods' custom wire blocks. This fix simply serves to allow those mods to run alongside Alternate Current without breaking.
21.02.2023 · 21 028 downloads
21.02.2023 · 1 119 downloads
21.02.2023 · 242 downloads
21.02.2023 · 410 downloads
21.02.2023 · 100 downloads
21.02.2023 · 83 downloads
21.02.2023 · 1 124 downloads
22.06.2022 · 2 397 downloads
changes since 1.2.1
21.06.2022 · 19 759 downloads
21.06.2022 · 7 372 downloads
21.06.2022 · 476 downloads
21.06.2022 · 518 downloads
21.06.2022 · 114 downloads
21.06.2022 · 150 downloads
07.06.2022 · 945 downloads
This update brings two big changes:
07.06.2022 · 505 downloads
This update brings two big changes:
07.06.2022 · 120 downloads
This update brings two big changes:
07.06.2022 · 122 downloads
This update brings two big changes:
07.06.2022 · 93 downloads
This update brings two big changes:
07.06.2022 · 86 downloads
This update brings two big changes:
13.05.2022 · 48 322 downloads
Changes since 1.1.0:
This update fixes a crash bug.
This update brings fixes and improvements for modders. Performance is otherwise unaffected.
09.05.2022 · 1 941 downloads
This update fixes a crash bug.
09.05.2022 · 111 downloads
This update fixes a crash bug.
09.05.2022 · 127 downloads
This update fixes a crash bug.
09.05.2022 · 89 downloads
This update fixes a crash bug.
09.05.2022 · 84 downloads
This update fixes a crash bug.
11.04.2022 · 1 313 downloads
This update brings fixes and improvements for modders. Performance is otherwise unaffected.
- Wires of different types would not interact properly, this has been fixed.
- Performance of networks with many different wire types has been significantly improved.
- Wire types with a power step of 0 (i.e. power does not decrease over distance) are now properly supported.
11.04.2022 · 137 downloads
This update brings fixes and improvements for modders. Performance is otherwise unaffected.
- Wires of different types would not interact properly, this has been fixed.
- Performance of networks with many different wire types has been significantly improved.
- Wire types with a power step of 0 (i.e. power does not decrease over distance) are now properly supported.
11.04.2022 · 111 downloads
This update brings fixes and improvements for modders. Performance is otherwise unaffected.
- Wires of different types would not interact properly, this has been fixed.
- Performance of networks with many different wire types has been significantly improved.
- Wire types with a power step of 0 (i.e. power does not decrease over distance) are now properly supported.
11.04.2022 · 90 downloads
This update brings fixes and improvements for modders. Performance is otherwise unaffected.
- Wires of different types would not interact properly, this has been fixed.
- Performance of networks with many different wire types has been significantly improved.
- Wire types with a power step of 0 (i.e. power does not decrease over distance) are now properly supported.
11.04.2022 · 79 downloads
This update brings fixes and improvements for modders. Performance is otherwise unaffected.
- Wires of different types would not interact properly, this has been fixed.
- Performance of networks with many different wire types has been significantly improved.
- Wire types with a power step of 0 (i.e. power does not decrease over distance) are now properly supported.
11.01.2022 · 540 downloads
30.11.2021 · 3 691 downloads
/alternatecurrent command has been re-introduced and can be used to toggle the mod on and off./alternatecurrent: tells you whether the mod is currently on./alternatecurrent [on|off]: toggles the mod on or off.30.11.2021 · 410 downloads
/alternatecurrent command has been re-introduced and can be used to toggle the mod on and off./alternatecurrent: tells you whether the mod is currently on./alternatecurrent [on|off]: toggles the mod on or off.30.11.2021 · 230 downloads
/alternatecurrent command has been re-introduced and can be used to toggle the mod on and off./alternatecurrent: tells you whether the mod is currently on./alternatecurrent [on|off]: toggles the mod on or off.30.11.2021 · 80 downloads
/alternatecurrent command has been re-introduced and can be used to toggle the mod on and off./alternatecurrent: tells you whether the mod is currently on./alternatecurrent [on|off]: toggles the mod on or off.30.11.2021 · 94 downloads
/alternatecurrent command has been re-introduced and can be used to toggle the mod on and off./alternatecurrent: tells you whether the mod is currently on./alternatecurrent [on|off]: toggles the mod on or off.18.11.2021 · 246 downloads
Alternate Current is finally out of Beta! It is now in an excellent state, both int terms of performance and stability. I'd like to thank everyone who has stuck with me through the past several months, helping and testing the mod.
Alternate Current is now available for Minecraft 1.7, 1.8, 1.12 and 1.13 through Legacy Fabric.
18.11.2021 · 120 downloads
Alternate Current is finally out of Beta! It is now in an excellent state, both int terms of performance and stability. I'd like to thank everyone who has stuck with me through the past several months, helping and testing the mod.
Alternate Current is now available for Minecraft 1.7, 1.8, 1.12 and 1.13 through Legacy Fabric.
18.11.2021 · 86 downloads
Alternate Current is finally out of Beta! It is now in an excellent state, both int terms of performance and stability. I'd like to thank everyone who has stuck with me through the past several months, helping and testing the mod.
Alternate Current is now available for Minecraft 1.7, 1.8, 1.12 and 1.13 through Legacy Fabric.
18.11.2021 · 86 downloads
Alternate Current is finally out of Beta! It is now in an excellent state, both int terms of performance and stability. I'd like to thank everyone who has stuck with me through the past several months, helping and testing the mod.
Alternate Current is now available for Minecraft 1.7, 1.8, 1.12 and 1.13 through Legacy Fabric.
11.10.2021 · 472 downloads
18.09.2021 · 280 downloads
This is a big milestone for Alternate Current! 0.4 brings significant performance improvements as well as changes to the block update order to make it more intuitive. I do not foresee any major changes, meaning there might only be minor tweaks before a full 1.0 release!
/fill command.18.09.2021 · 117 downloads
This is a big milestone for Alternate Current! 0.4 brings significant performance improvements as well as changes to the block update order to make it more intuitive. I do not foresee any major changes, meaning there might only be minor tweaks before a full 1.0 release!
/fill command.18.09.2021 · 80 downloads
This is a big milestone for Alternate Current! 0.4 brings significant performance improvements as well as changes to the block update order to make it more intuitive. I do not foresee any major changes, meaning there might only be minor tweaks before a full 1.0 release!
/fill command.18.09.2021 · 74 downloads
This is a big milestone for Alternate Current! 0.4 brings significant performance improvements as well as changes to the block update order to make it more intuitive. I do not foresee any major changes, meaning there might only be minor tweaks before a full 1.0 release!
/fill command.26.08.2021 · 321 downloads
Alternate Current 0.3.0 brings a slight performance boost over 0.2.0 and makes changes to the block update order. Heavily inspired by theosib's RedstoneWireTurbo, the block update order depends on the way power flows through wire networks.
The /alternatecurrent command has been removed. This means the only way to disable the mod is to remove it from your mods folder.
26.08.2021 · 111 downloads
Alternate Current 0.3.0 brings a slight performance boost over 0.2.0 and makes changes to the block update order. Heavily inspired by theosib's RedstoneWireTurbo, the block update order depends on the way power flows through wire networks.
The /alternatecurrent command has been removed. This means the only way to disable the mod is to remove it from your mods folder.
26.08.2021 · 89 downloads
Alternate Current 0.3.0 brings a slight performance boost over 0.2.0 and makes changes to the block update order. Heavily inspired by theosib's RedstoneWireTurbo, the block update order depends on the way power flows through wire networks.
The /alternatecurrent command has been removed. This means the only way to disable the mod is to remove it from your mods folder.
26.08.2021 · 84 downloads
Alternate Current 0.3.0 brings a slight performance boost over 0.2.0 and makes changes to the block update order. Heavily inspired by theosib's RedstoneWireTurbo, the block update order depends on the way power flows through wire networks.
The /alternatecurrent command has been removed. This means the only way to disable the mod is to remove it from your mods folder.
13.07.2021 · 384 downloads
Alternate Current 0.2.0 brings some performance improvements over 0.1.3, while fixing several bugs.
13.07.2021 · 139 downloads
Alternate Current 0.2.0 brings some performance improvements over 0.1.3, while fixing several bugs.
13.04.2021 · 343 downloads
The fixes in this update bring a slight performance loss, which I hope to reclaim in future updates.
10.04.2021 · 108 downloads
08.04.2021 · 171 downloads
05.04.2021 · 206 downloads
Fast Redstone is an efficient and non-locational redstone dust implementation. With the mod you will see up to 20 times fewer block updates caused by redstone dust, and working with redstone dust will be less cumbersome, due to locationality no longer being an issue.
To enable the mod, use the /fastredstone enable command. To disable it, use the /fastredstone disable command.