emulator: GemRB
type: standalone
core_classification: game_engine
source: "https://github.com/gemrb/gemrb"
upstream: "https://github.com/gemrb/gemrb"
profiled_date: "2026-10-20"
source_commit: "ef32a9a8b837ddf4f3a9508b23710146ada2d5fe"
core_version: "0.9.2"
display_name: "Infinity Engine (GemRB)"
cores:
  - gemrb
systems: []
mode: standalone

notes: |
  Reimplementation of BioWare's Infinity Engine, running Baldur's Gate,
  Baldur's Gate II, Icewind Dale, Icewind Dale II and Planescape: Torment
  from their original data. Profiled at tag v0.9.2, the build RetroBat ships
  (gemrb_core.dll reports GemRB v0.9.2). RetroBat writes GemRB.cfg with
  GamePath set to the game folder and GameType taken from its extension,
  then runs gemrb.exe -c GemRB.cfg
  (emulatorLauncher/Generators/GemRB.Generator.cs). RetroPie builds tag
  v0.8.6 and writes one GemRB.cfg per game, GamePath under
  $romdir/ports/<game>/ (scriptmodules/ports/gemrb.sh). v0.8.6 reads the
  same two files from GamePath, chitin.key at gemrb/core/Interface.cpp:1570
  and dialog.tlk at 1679 of that tag.

  GamePath defaults to the current directory, and when it holds no
  chitin.key the engine tries .. and ../.. before falling back to the demo
  game it installs under its own data directory
  (gemrb/core/Interface.cpp:886-912). The game's resources are then
  indexed through chitin.key, which names the BIF archives under data/ and
  the CD folders (gemrb/core/Interface.cpp:1081-1090, 1106-1115). Every game
  ships its own chitin.key and dialog.tlk, so both entries below stand for
  the copy in the folder of the game being run.

  GUIScripts, unhardcoded/ and override/ are the engine's own Python and
  table data, installed with the program and read from GemRBPath
  (gemrb/core/Interface.cpp:1048-1058, 1094-1102). No file is hashed.

files:
  - name: chitin.key
    category: game_data
    required: true
    source_ref: "gemrb/core/Interface.cpp:886-912, 1106-1115"
    note: "Resource index of the game in GamePath. GemRB stops when it cannot open it."
    unsourceable: "retail data the collection does not hold, and a same-named file of another game must not stand in"

  - name: dialog.tlk
    category: game_data
    required: true
    source_ref: "gemrb/core/Interface.cpp:1233-1246"
    note: "String table, read from GamePath, then from the language folder of Enhanced Edition installs. GemRB stops when neither opens."
    unsourceable: "retail data the collection does not hold, and a same-named file of another game must not stand in"

  - name: dialogf.tlk
    category: game_data
    required: false
    source_ref: "gemrb/core/Interface.cpp:1248-1266"
    note: "Female string table, read only when dialog.tlk declares one. Without it the engine falls back to dialog.tlk."
    unsourceable: "retail data the collection does not hold, and a same-named file of another game must not stand in"