
SubTick
A Carpet extension allowing for finer tick stepping control.
About this Mod
SubTick
This mod uses Fallen's fabric mod template.
A carpet extension that allows you to freeze and step to any specific tick phase, as well as step through tile ticks, fluid ticks, block events, entities, and block entities individually. Get it on your client for highlights and a HUD.
Commands
[] represents an optional argument, and <> represents an obligatory argument. If an argument is written like count=1, that means 1 is the default value.
tick freeze [phase=subtickDefaultPhase]: Freezes/unfreezes right beforephase.tick step [count=1] [phase=subtickDefaultPhase]: Stepscountticks, ending right beforephase. Supportstick step 0 [phase]to step to a later phase in the same tick.phaseStep [count=1]: Stepscountphases forward, stepping to the next tick if necessary.phaseStep <phase>: Steps tophase, within the current tick.phaseStep <phase> force: Steps to the nextphasestepping to the next tick if necessary.queueStep <queue> [count=1] [range=subtickDefaultRange]: Steps throughcountelements inqueuewithinrangeblocks, within the current tick. Setrangeto-1for unlimited range.queueStep <queue> [count=1] [range=subtickDefaultRange] force: Steps throughcountelements inqueuewithinrangeblocks, stepping to the next tick if necessary. Setrangeto-1for unlimited range.
Special cases
Block events and block ticks have the option to use a different mode for stepping. Block events can step through whole block event depths, and block ticks can step through whole block tick priorities.
queueStep blockEvent [mode=index] [count=1] [range=subtickDefaultRange] [force]queueStep blockTick [mode=index] [count=1] [range=subtickDefaultRange] [force]
Client config
To open the config menu, use Modmenu.
- Stepped: The stuff that has already been stepped through.
- Stepping: The stuff that got stepped in the most recent queueStep.
- To Step: The stuff that has not been stepped through yet.
- Separator: The color used between and around the cells of the table.
- Position: The color used for the arrow and line indicating the current position in the tick.
- HUD Alignment: Which edge or corner of the screen the HUD is aligned to.
- HUD Offset: The offset in pixels from the aligned position.
- Max Queue Size: The maximum number of queue elements displayed in the HUD.
- Max Highlight Size: The maximum number of highlighted queue elements in the HUD.
Carpet rules
This mod uses carpet rules for its configuration options. For how to use the text formatting, search for "format(components, ...)" in Auxiliary.md.
subtickDefaultPhase=blockTick: The default tick phase to freeze at and step to, if it's not specified in the command.subtickDefaultRange=32: The default range within which to queueStep.subtickTextFormat=ig: The format for command feedback text.subtickNumberFormat=iy: The format for command feedback numbers.subtickPhaseFormat=it: The format for command feedback phases.subtickDimensionFormat=im: The format for command feedback dimensions.subtickErrorFormat=ir: The format for command feedback errors.
Available Versions
How to Install SubTick on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "SubTick". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.19.4, 1.19.3 (+5 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
SubTick server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is SubTick compatible with fabric?
SubTick officially supports fabric for Minecraft 1.20.1, 1.19.4, 1.19.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with SubTick – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if SubTick consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install SubTick with just one click on your server.