Foundry Engine
Foundry Engine is a NeoForge library that turns Minecraft into a development-ready game engine, with scripting, dialogue and cutscene tools inside the game.
What it does
Content is grouped into self-contained bundles stored in .minecraft/FoundryEngine/bundles. Each bundle keeps its Groovy scripts, models, textures and sounds in one isolated folder, so a map or story can be moved and shared as a unit. Mapmakers, server owners and modpack creators can use it to make standalone games, custom gameplay systems and narrative content without compiling separate mod JARs.
Changes to scripts, models, textures, sounds and other assets take effect while the game runs, because the engine reloads them. Registry changes still need a game restart, since they cannot be hot reloaded yet. The mod is open source under the BSD 3-Clause License, and it depends on ImGuiMC, which must be installed alongside it. Files exist for 26.1.2 and 26.2, and the latest NeoForge build targets 26.2 on the alpha channel. It can run on a client, a server, or both.
Key features
Self-contained bundles
Scripts, models, textures and sounds are grouped in one folder per bundle, kept apart from other content.
Live reloading
Script logic and asset edits can be tested while the game is running, with a reload of the engine applying them.
Groovy script editor
Groovy scripts can be edited in-game, with colored syntax, plus diagnostic checks that flag problems in the code.
Dialogue editor
Branching conversations can be built, with player choices, conditions that must be met and script triggers that fire events.
Visual cutscene timeline
Camera paths can be laid out on splines, with keyframes setting focal points and easing curves between shots.
Spatial area tools
3D bounding boxes can be placed in the world, so trigger zones are set up by eye rather than by coordinates.
Development utilities
Textures can be inspected, files browsed, recipes tested, console logs monitored and changes committed to Git from inside the game.
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 1
How it compares
VoxelFX is a NeoForge mod for 26.1.2 – 26.2 with a client-side only environment, released under the GNU General Public License v3.0 only and open source. Katton is open source under the MIT License, works on Fabric and NeoForge for 26.1 – 26.1.2, and runs on both client and server. Foundry Engine is the only one here that adds a full in-game development environment for building content.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Foundry Engine | NeoForge | 26.1.2 – 26.2 | Client or server, optional | 2026-09-13 |
| VoxelFX | NeoForge | 26.1.2 – 26.2 | Client-side only | 2026-06-20 |
| Katton | Fabric and NeoForge | 26.1 – 26.1.2 | Client and server | 2026-08-06 |
Questions
Does Foundry Engine need ImGuiMC?
Can the mod be installed only on a server?
Do script changes need a restart?
In the catalog
Foundry Engine is one of 3,514 Library mods on ModsFinder, and one of 1,449 Library mods for NeoForge. 13,894 mods support Minecraft 26.2.
More from Perxenic Studios
Similar mods
What the author says
An in-game development platform and scripting engine built as a NeoForge Minecraft mod. FoundryEngine provides an in-game development environment for Minecraft. It lets mapmakers, server owners, and modpack creators build standalone games, custom mechanics, and interactive story systems without compiling separate mod…
Official listing
- Modrinth page
- modrinth.com/mod/foundryengine
- Owner
- Perxenic Studios
- Published
- 2026-06-22
- Updated on Modrinth
- 2026-09-13
- Facts verified
- 2026-10-15