Your first dive
Install HellForge, prepare your own game copy, and set up a local profile.
Install HellForge ↗Field manual
Install HellForge, use mods, or create your own.
Install HellForge, prepare your own game copy, and set up a local profile.
Install HellForge ↗Download a mod ZIP. Open Mods in the launcher, choose Add mods…, and enable it. For co-op, everyone needs the same gameplay mods and versions.
Find a mod ↗Copy the template, give it your own ID, and edit the C source. HellForge fetches its pinned compiler and builds your mod.
Follow the first-mod tutorial ↗Look up APIs, explore definition blocks, and learn from working examples of weapons, stratagems, and custom difficulties.
Setup copies the supported files from your own Steam installation, or guides you through Steam's download of that build. Your normal Steam game stays separate.
Yes. Host or join Steam friends who also run HellForge with matching gameplay mods. There is no public matchmaking or connection to the official game's players.
Use the ZIP button on the launcher's Mods page, then upload the package here. Future updates keep the same mod ID and use a new version number. Every submitted release goes through moderation.
Authors declare the HellForge version and game build they tested. A moderator reviews submissions, but approval is not a compatibility certification or a guarantee that code is safe. Only enable code mods from people you trust.