Minecraft, But a Random Effect Happens Every 30 Seconds (Chaos)
by uiinpui
Minecraft, But a Random Effect Happens Every 30 Seconds is a datapack-driven chaos mod that triggers a random effect at a fixed interval, inspired by the GTA 5 chaos mod.
What it does
The mod is delivered as a datapack, so it is installed by placing it in a world's datapacks folder and then running a command to start it. Once running, a random effect fires on a timer, and the interval between effects defaults to 30 seconds. A separate command stops the run when the player wants to end it.
Setting the interval uses pre-made functions for several preset lengths. The author warns against a 1 second setting. A custom value can be set by changing two values in commands listed in the author text; both must match, since they drive the bossbar timer and the tick count. Changes made before a run begins take effect cleanly.
Files are published for Fabric, Forge, NeoForge and Quilt, for 1.21.11 only. It is required on the server and optional for players. The code is not open source and is covered by All rights reserved.
Key features
Random timed effects
A random effect fires at each interval, so the world changes repeatedly without the player choosing when.
Start and stop commands
A run is started with one command and ended with another, so a session can be paused or closed on demand.
Preset intervals
Pre-made functions offer several fixed gaps between effects, from short to one minute.
Custom interval
Two commands change the time between effects directly, and a bossbar timer reflects the chosen value.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Multiplayer chaos sessions
A server operator can run the datapack so players face unpredictable effects during shared play.
Single-player challenge runs
A solo player can set a short interval and play through the random effects as a challenge.
Who it’s for: Server owners and operators who want a timed chaos session, and players who enjoy unpredictable gameplay. Operator status is needed to run the commands.
How it compares
Random Crafts is an open source Fabric, Forge, NeoForge and Quilt mod for 1.20.1 – 1.21.11, and is needed on the server, with the client optional. Random Sizes is a Fabric mod for 1.21.5 – 1.21.11 that needs both client and server, and it is not open source. Chaos runs as a datapack rather than a loader mod, so it is not tied to a single loader.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Minecraft, But a Random Effect Happens Every 30 Seconds (Chaos) | Fabric, Forge, NeoForge and Quilt | 1.21.11 | Server required, client optional | 2026-01-08 |
| Random Crafts | Fabric, Forge, NeoForge and Quilt | 1.20.1 – 1.21.11 | Server required, client optional | 2026-07-16 |
| Random Sizes | Fabric | 1.21.5 – 1.21.11 | Client and server | 2025-12-29 |
Questions
Does Chaos need a specific mod loader?
Who can start and stop a run?
Can the interval be changed?
In the catalog
Minecraft, But a Random Effect Happens Every 30 Seconds (Chaos) is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from uiinpui
Similar mods
What the author says
(Remember that you need operator status to run /function commands) 3. If you want to stop, you can run the command As an operator, you get to pick how many seconds the interval between effects is, the default is 30 (hence the title), but there are pre-made functions that allow you to set it to 10, 15, 20, 30 or 60…
Official listing
- Owner
- uiinpui
- Published
- 2026-01-08
- Updated on Modrinth
- 2026-01-08
- Facts verified
- 2026-10-15