DirkSimple

DirkSimple emulates Laserdisc arcade games.

About this profile

Detail	Value
Type	standalone + libretro
Classification	Official port
Source	https://github.com/icculus/DirkSimple
Version	0.3, stated in dirksimple_libretro.c
Revision	icculus/DirkSimple@d5d75f97af34
Profiled	2026-03-23
Profile	YAML, JSON
Cores	dirksimple
Systems	Laserdisc arcade games

Technical notes

DirkSimple by Ryan C. Gordon (icculus). Plays laserdisc arcade games via Lua scripts + Ogg Theora video. Same author wrote both standalone and libretro backends (source == upstream).

Libretro port loads from system_dir/DirkSimple/. ref: dirksimple_libretro.c:782,794 sysdir from RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY basedir = sysdir + "/DirkSimple/" DirkSimple_startup(basedir, info->path, ...) at line 799

Standalone loads from SDL_GetBasePath() + data/. ref: dirksimple_sdl.c:575-577

Game data in data/games/<gamename>/game.lua + assets (PNG, WAV). User provides the OGV laserdisc video as content.

Supported games: Dragon's Lair (lair), Cliff Hanger (cliff). 10 data files in the repo (game.lua scripts, sprites, sounds, icons).

Buildbot provides DirkSimple.zip via Core System Files Downloader.

No BIOS or firmware files required.

Data directories

• dirksimple: DirkSimple Dragon's Lair engine data
  • Fetched from https://buildbot.libretro.com/assets/system/DirkSimple.zip
  • Revision: master (4192491725)
  • Source: dirksimple_libretro.c:794

Next steps

• Get your files, for the setup you play on
• Every system, and the files each one needs
• When a game does not start

Data as of 4 November 2026.