Beyond Containment - IGS
Beyond Containment is a Forge mobs mod from Immortal Game Studios that adds hostile creatures from the Eclipse Protocol setting, released for six game versions.
What it does
The additions are corrupted lifeforms, unstable anomalies and Eclipse-born entities that escaped from restricted facilities. The setting centers on failed containment procedures, abandoned research programs and classified military projects, and the creatures are presented as the biological side of that broken world. Blacksite systems collapsed and research teams disappeared, yet the facilities kept running without reliable human control.
Encounters are built around hostility, fear and survival risk rather than fantasy monsters. The entities are meant to make exploration more dangerous and to give abandoned locations a sense of collapse, and their designs draw on dark biological-horror imagery. Creatures can be placed in locations that suit the setting, where they signal to the player that something has already broken loose in the area.
The mod works on client and server, so both the server and every player need it. Files are published for Forge only, across six game versions, with 1.0.3 for 1.20.6 as the latest build from 2026-07-30. Beyond Containment is released under All rights reserved and is not open source.
Key features
Eclipse-born hostile mobs
New hostile entities drawn from corrupted experiments and biological distortions populate the world.
Abandoned research sites
Creatures suit abandoned facilities and military locations, giving them a stronger link to their collapse.
Biological horror design
Creature designs use dark, infected and mutated forms in place of conventional fantasy monsters.
Unstable anomaly threats
Anomalous creatures add pressure and uncertainty to exploration and survival.
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
Solar Eclipses is also a Forge mod for 1.20.1, running on client and server under All rights reserved and not open source, but it focuses on the sky rather than hostile creatures. p682 is a Forge option for 1.20.1 with the same environment and license, and it is not open source. [CS] SCP is a Forge mod for 1.20.1 that shares the client and server environment and the All rights reserved license, and it is not open source. Beyond Containment covers more game versions than any of these three.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Beyond Containment - IGS | Forge | 1.20.1 – 1.20.6 | Client and server | 2026-07-30 |
| Solar Eclipses | Forge | 1.20.1 | Client and server | 2025-10-02 |
| p682 | Forge | 1.20.1 | Client and server | 2025-12-01 |
| [CS] SCP | Forge | 1.20.1 | Client and server | 2026-03-16 |
Questions
Does Beyond Containment need to be installed on the server?
Which game versions does Beyond Containment support?
In the catalog
Beyond Containment - IGS is one of 11,058 Mobs mods on ModsFinder, and one of 6,527 Mobs mods for Forge. 11,154 mods support Minecraft 1.20.6.
More from Immortal Game Studios
Similar mods
What the author says
Beyond Containment – IGS is the official creature and hostile-entity expansion for the Eclipse Protocol universe, developed by Immortal Game Studios. The mod adds corrupted lifeforms, unstable anomalies, escaped experiments, biological distortions, and Eclipse-born entities to Minecraft.
Official listing
- Modrinth page
- modrinth.com/mod/beyond-containment-igs
- Owner
- Immortal Game Studios
- Published
- 2026-07-03
- Updated on Modrinth
- 2026-07-30
- Facts verified
- 2026-10-15