Simple TAS Tools for the game Celeste

The easiest version to install is the Everest version.

• Install Everest if you haven't already.
• Use the 1-click installer here.
• Enable TAS in the mod settings.
• Download Celeste Studio, our input editor. (Note that Studio is Windows-only.)

Manual installation is only recommended if you're messing with CelesteTAS code. Instructions can be found here.

Input file is called Celeste.tas and needs to be in the main Celeste directory (usually C:\Program Files (x86)\Steam\steamapps\common\Celeste\Celeste.tas)

Format for the input file is (Frames),(Actions)

e.g. 123,R,J (For 123 frames, hold Right and Jump)

• R = Right
• L = Left
• U = Up
• D = Down
• J = Jump / Confirm
• K = Jump Bind 2
• X = Dash / Talk
• C = Dash Bind 2
• G = Grab
• S = Pause
• Q = Quick Reset
• F = Feather Aim (Format: F,angle)
• O = Confirm
• N = Journal (Used only for Cheat Code)

While in game

• Start/Stop Playback: RightControl + [
• Fast Forward / Frame Advance Continuously: RightControl + RightShift
• Pause / Frame Advance: [
• Unpause: ]
• These can be rebound in (Main Celeste Directory)\Saves\modsettings-CelesteTAS.celeste
  • Note that you may have to reload Mod Settings in Celeste for this file to appear.

While in game

• Start/Stop Playback: Right Stick
• Fast Forward / Frame Advance Continuously: Right Stick X+
• Pause / Frame Advance: DPad Up
• Unpause: DPad Down

• You can create a breakpoint in the input file by typing *** by itself on a single line
• The program when played back from the start will fast forward until it reaches that line and then go into frame stepping mode
• You can specify the speed with ***X, where X is the speedup factor. e.g. ***10 will go at 10x speed
• ***! will force the TAS to pause even if there are breakpoints afterward in the file

• Read,File Name,Starting Line,(Optional Ending Line)
• Will read inputs from the specified file.
• Currently requires files to be in the main Celeste directory.
• e.g. "Read,1A - Forsaken City.tas,6" will read all inputs after line 6 from the '1A - Forsaken City.tas' file
• This will also work if you shorten the file name, i.e. "Read,1A,6" will do the same
• It's recommended to use labels instead of line numbers, so "Read,1A,lvl_1" would be the preferred format for this example.

• Prefixing a line with # will comment out the line
• A line beginning with # can be also be used as the starting point or ending point of a Read instruction.
• You can comment highlighted text in Celeste Studio by hitting Ctrl+K

Can be used instead of notepad or similar for easier editing of the TAS file. Is located in Releases as well.

If Celeste.exe is running it will automatically open Celeste.tas if it exists. You can hit Ctrl+O to open a different file, which will automatically save it to Celeste.tas as well. Ctrl+Shift+S will open a Save As dialog as well.