About Opposing Force
From ModrinthA mod that aims to introduce a wide variety of enemies to Minecraft!
About Opposing Force
Opposing Force is an enemy mod that focuses on adding unique, fair and challenging enemies to your world, along with a variety of miscellaneous features. A major change Opposing Force will bring to your world is the introduction of a Post-Nether and Post-End progression gate.
Certain enemies will only spawn after:
- Entering the Nether for the first time
- Killing the Ender Dragon for the first time
These events are per-world and one player triggering the event will trigger it for all players in a server. These progression gates can be disabled in the Sinew config, and are also data driven, so you can use a datapack to edit the post_nether_spawns and post_end_spawns tags.
Mobs in Opposing Force may spawn from worldgen features, in specific biomes, or in other specific places. You can configure the spawn height requirements for most of the mobs in the mod. The Skyvern has a special spawning mechanic, where it has a 2% chance to spawn every 30 seconds (15 seconds if it is raining), where the chance increases by 2% for every failed spawn. The chance and spawn attempts are individual per player. Another example is the Tart, which can spawn from an Infested Apple Tree, a worldgen feature. Most mobs in Opposing Force have drops, which can be crafted into tools and items or decorative blocks. In the future, we will have tooltips on these items explaining mechanics that might not be obvious. Opposing Force also adds features that do not come from mob drops. For example, Emerald Armor can be obtained from Wandering Traders.
Mod Loader and Version
This mod is currently being developed for NeoForge 1.21.1. No backports are planned.
Highlights
From source dataGame versions
Supports 2 Minecraft versions, the newest being 1.21.1.
Loaders
Runs on Forge and NeoForge.
Footprint
Rated a light load on a server.
Opposing Force on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Forge, NeoForge
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 3.0.0-beta8 (beta), released 2026-10-22
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Forge | 1.20.1 | 1.20.1 |
| NeoForge | 1.21.1 | 1.21.1 |
From 9 recorded builds of Opposing Force.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 3.0.0-beta8 beta | 2026-10-22 | 1.21.1 | NeoForge |
| 3.0.0-beta7 beta | 2026-10-10 | 1.21.1 | NeoForge |
| 3.0.0-beta6 beta | 2026-10-02 | 1.21.1 | NeoForge |
| 3.0.0-beta5 beta | 2026-10-01 | 1.21.1 | NeoForge |
| 3.0.0-beta4 beta | 2026-10-01 | 1.21.1 | NeoForge |
| 3.0.0-beta3 beta | 2026-09-26 | 1.21.1 | NeoForge |
Dependencies
- Required: modrinth project vvuO3ImH (modrinth, not in our catalogue)
- Required: modrinth project iBgzSrdT (modrinth, not in our catalogue)
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run Opposing Force on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogCreatures & NPCs
Adds or changes creatures, NPCs and how they behave.
Runs on your server
From source side supportModrinth lists Opposing Force as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- ForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.1 and 1 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-23Open ↗
- ✓Authorplatypushasnohat, as published on Modrinth
- ✓LicenseLicenseRef-CustomFree












