Stasis
by bitz
Stasis lowers the tick load of idle automation on Fabric servers by suspending BlockEntity ticks for blocks such as hoppers, furnaces and brewing stands.
What it does
Stasis tracks how active each BlockEntity is and scales its tick rate down as the idle time grows. A block that stays inactive long enough is frozen, and it resumes at once when a change reaches it, such as an item entering a hopper or a redstone signal arriving at a furnace. The aim is to cut unnecessary tick calls in dense automation builds while keeping vanilla mechanics and redstone timing intact.
The mod is server-side only, so players join without installing it, and the server needs Fabric API and Cloth Config API as required dependencies. Files target 1.21.11 alone, and the single Fabric build is 0.1.0, published on 2026-02-28 on the alpha channel. The source code and issue tracker are public, and the code is released under the MIT License.
Key features
Activity-aware tick scheduler
Each BlockEntity is scheduled according to how recently it changed, so busy blocks keep their normal rate.
Dynamic tick scaling
The longer a block stays idle, the less often it is ticked, which lowers the overall tick load.
Automatic freeze for long-term inactivity
Blocks that remain inactive for an extended period are frozen until something acts on them.
Instant reactivation
A frozen block returns to full ticking the moment a change reaches it, so timing is not delayed.
Optional distance-based chunk heuristics
An optional setting uses distance to adjust tick rates, which can be enabled or left off per server.
Runtime admin commands
Server administrators can monitor the scheduler and change its settings while the server is running.
Whitelist and blacklist control
A configurable whitelist and blacklist decide which block types are managed and which are always ticked.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
TickShield is also server-side only and is open source under the Mozilla Public License 2.0, but it is published only for 1.21.11, the same version as Stasis. Totem in a Barrel is a server-side only mod for 1.21.11 – 26.3 and is not open source, so it covers later versions than Stasis. Vanilla+ TPS needs the server and is optional on the client, with files for 1.20 – 26.3 under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Stasis | Fabric | 1.21.11 | Server-side only | 2026-02-28 |
| TickShield | Fabric | 1.21.11 | Server-side only | 2026-04-12 |
| Totem in a Barrel | Fabric | 1.21.11 – 26.3 | Server-side only | 2026-09-25 |
| Vanilla+ TPS | Fabric | 1.20 – 26.3 | Server required, client optional | 2026-09-22 |
Questions
Does Stasis need Fabric API and Cloth Config API?
Does Stasis have to be installed on the client?
Does Stasis change how redstone works?
Which Minecraft version does Stasis support?
In the catalog
Stasis is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from bitz
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What the author says
Stasis is a high-performance, server-side Fabric optimization mod that intelligently reduces unnecessary BlockEntity ticking. By dynamically throttling or suspending idle automation blocks such as hoppers, furnaces, chests, and brewing stands, Stasis lowers overall tick load while preserving vanilla mechanics and…
Official listing
- Modrinth page
- modrinth.com/mod/stasis.
- Owner
- bitz
- Published
- 2026-02-28
- Updated on Modrinth
- 2026-02-28
- Facts verified
- 2026-10-15