Only Fight or Flight
by MrFrostyDev
Only Fight or Flight restricts block placement during combat, so players who are fighting nearby mobs cannot build walls or bridges in the middle of a fight.
What it does
Only Fight or Flight adds a simple system that works like the combat in open-world sandbox RPGs. While a player is in combat with a targeted hostile mob close by, block placement is blocked. A whitelist or blacklist controls which blocks stay placeable, and certain mobs can be turned off so they do not trigger the restriction. Players still have to plan ahead, since building an instant blockade or a quick bridge away from danger is no longer possible mid-fight, which discourages making holes in walls as an entrance strategy.
The mod also includes optional in-combat effects that apply when a player is near mobs, a combat reminder icon in the user interface, and separate timers that set how long combat lasts. It is published for Forge and NeoForge and runs on client and server, so the server and every player need it. Its files cover game versions 1.20.1 and 1.21.1, and the license is All rights reserved, so the code is not open source.
Key features
Block placement lock
Players cannot place blocks while in combat with a nearby hostile mob, which removes quick blockades and bridges during a fight.
Block whitelist and blacklist
A whitelist or blacklist decides which placeable blocks are affected by the restriction, so server owners can fine-tune it.
Per-mob selection
Individual mobs can be switched off, so only the chosen mob types start the combat restriction.
Adjustable combat timers
Combat length can be set separately for each action, such as dealing or taking damage, with configurable durations.
Combat reminder icon
An optional user interface icon signals that combat is active and that block placement is restricted.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Survival Fly is a server-side mod for Fabric, Forge and NeoForge that covers 1.20.1 – 26.3 and is released under All rights reserved, so players can join without installing it. Epic RPG: InCombat is a Forge-only client and server mod for 1.20.1 under All rights reserved, the closest to this mod in concept because it also tracks combat state. Auto Elytra Flight is client-side only and open source under the GNU General Public License v3.0 only, covering Forge and NeoForge for 1.18.2 – 1.21.4, so it does not affect combat at all.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Only Fight or Flight | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2025-08-18 |
| Survival Fly | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Server required, client optional | 2026-09-23 |
| Epic RPG: InCombat | Forge | 1.20.1 | Client and server | 2026-02-19 |
| Auto Elytra Flight | Forge and NeoForge | 1.18.2 – 1.21.4 | Client-side only | 2025-02-15 |
Questions
Does Only Fight or Flight need to be installed on the server?
Which loaders does Only Fight or Flight support?
Can server owners change which blocks are restricted?
In the catalog
Only Fight or Flight is one of 29,952 Game mechanics mods on ModsFinder, and one of 13,316 Game mechanics mods for Forge. 32,366 mods support Minecraft 1.21.1.
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What the author says
Only Fight or Flight adds a simple and highly-configurable system similar to open-world sandbox rpgs where players cannot place blocks in the middle of a fight! No more instant blockades or quick block bridging away during fighting! Discourage making holes and blocking their entrance as the ultimate strategy! Use to…
Official listing
- Modrinth page
- modrinth.com/mod/only-fight-or-flight
- Owner
- MrFrostyDev
- Published
- 2025-06-28
- Updated on Modrinth
- 2025-08-18
- Facts verified
- 2026-10-15