This project is currently not actively being developed!

If you want to TAS Minecraft versions 1.21+, check LoTAS-Light,
which will be easier to maintain, while we focus on developing TASmod.
For more information and plans, read this announcement: Future of Mineraft TAS tools

LoTAS

Used for creating non-playback, Low optimization Tool-Assisted Speedruns (LoTAS).
You essentially play through your route in slow motion while using a recording program such as OBS to capture yourself playing the game. Later you speed up the video footage and edit your attempts into a final video, then speed up the video footage.

LoTAS is a collection of tools commonly used for TASing, with a big focus on RNG manipulation.

Tools

• Tickrate Changer: Used for slowing down the game speed
• Savestates: Used for creating backups of your world, basically quick save/quick load
• Drop Manipulation: Manipulates mob drops to always drop the best items
• Dragon Manipulation: Manipulates the dragon phases
• Item Duplication (Dupemod): Replicates the duping bug from vanilla, without the need to close the game.
• Spawn Manipulation: Spawn entities at a certain location.
• AI Manipulation: Let entities pathfind to a certain place

and more…

Bugs / Feature Requests

We won't accept any feature-requests at this time, as well as bug reports.

If you need help with setting up LoTAS then join this Discord

Compatibility Issues

LoTAS has compatibility issues with the following mods/programs:

• ReplayMod: Game Crashes in Replay Viewer and Replays behave weirdly, when recording in low tickrates
• Optifabric+Optifine: Game Crashes on startup -> Use Sodium and Iris
• Feather: Feather have their own dubious forge version, which breaks everything.
• Speedruning Mods: LoTAS changes a lot of things in the world saving code to make savestates possible. Coincidentally, speedrunning mods do the same, making them incompatible. We are not supporting them, since LoTAS is not supposed to be used with speedrunning mods in the first place.
• Modpacks in general: LoTAS does a lot of bad things under the hood that breaks compatibility. The more mods you install, the more likely it is that it will not work.

Translations

Credits:
Simplified Chinese: RayXu6, Proofreading by normalzombie
Japanese: Naruyoko
Korean: Sidite
French: azulamazigh

FAQ

How do I start?

• Most of LoTAS is accessible via the in-game pause menu.
• The main menu has a "configuration" button
• Pressing F6 opens an in game HUD, where you can display various information onscreen.

Can I disable the potion in the hotbar?

No, we do not provide that feature. We want to prevent cheating with our mod and this is our compromise for making it not too annoying. Please live with it and support our fight against cheaters.

Can this mod record and play back inputs?

No, it can not. This mod was specifically made to not allow for that, hence the "non-playback" in the description. For a playback mod, check TASmod.

Where is the video upspeeder?

In earlier versions, LoTAS came with a video editor of sorts, that let you speed up videos by a certain amount. This feature was a minor desaster, so we decided to remove it, because video editors like Shotcut are much better, provide more functionality and happen to work as intended.

How do I use item duplication?

This differs if you are on versions below 1.12.2 (Forge) or versions higher than 1.14.4 (Fabric)

1.14.4-1.20.1

1. Open the pause menu and click in the top left Save Items
2. Throw item(s) on the ground
3. Open the pause menu and click in the top left Load Items
4. An item should spawn in your inventory

1.8.9-1.12.2

1. Throw the item(s) you want to duplicate on the ground
2. Open the pause menu and click in the top left Save Items
3. Pick up the item(s)
4. Open the pause menu and click in the top left Load Items
5. An item should spawn on the ground

Why is there no multiplayer?

This mod wasn't developed with multiplayer in mind. The plan was to add it later but this turned out to be very tedious. Multiplayer support is/was planned in LoTAS 3.0