CLUSTER GAME-CLASSIC-ENGINE · 34 ENTRIES · EARLIEST ENTRY 2018-04-15
Classic game engine reimplementations
This cluster consists of open-source game engine reimplementations and source ports that let players run classic titles (e.g., Morrowind, Doom, Diablo) on modern systems using original game data. Entries appear in most months from April 2018 through May 2026, with occasional months having no new members and a few months having two. Traction is led by Homeworld-RTX with 1 star, while DXX-Rebirth and Doom BFA each have 0 stars.
Entry timeline
ENTRY TIMELINE
Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.
Members by activity
Activity signals, not revenue.
Build origin · 7 hand-coded · 7 unlabelled
Operator · 14 open source
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 14 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 21Q-Zandronum0★9 mostalelivehand-codedopen sourceA multiplayer first-person shooter game, forked from an existing engine, offering improved netcode and configurable movement for classic shooter mods.
- 22LibreQuake0★11 mostaleliveopen sourceFree content pack of levels and assets for a classic-style first-person shooter, played through a separate compatible game engine.
- 23DevilutionX0★11 mostaleliveopen sourceSource port of the classic action role-playing game Diablo that enables modern play with enhanced controls and display options.
- 24Shuusou Gyoku (Engine)0★11 mostaleliveopen sourceSource port of a classic shoot 'em up game that runs on modern systems using original game data files.
- 25Crispy Doom0★1 yrabandonedliveopen sourceDesktop application that runs classic first-person shooter game files at enhanced resolution while preserving original look, feel, bugs, and multiplayer support.
- 26ioquake30★1 yrabandonedlivehand-codedopen sourceEngine that provides the core technology for first-person shooter games, including rendering and networking.
- 27diablo0★1 yrabandonedlivehand-codedopen sourceAction role-playing game engine that lets players run and play a classic dungeon-crawling adventure title on modern systems.
- 28OpenNox0★2 yrabandonedliveopen sourceGame engine reimplementation that lets owners of a classic action role-playing game run it on modern systems.
- 29IO Return to Castle Wolfenstein0★7 yrabandonedlivehand-codedopen sourceGame engine and client that lets players run and continue playing a World War II first-person shooter using original game data files.
- 30Doomsday Engine0★5 yrabandonedlivehand-codedopen sourceGame engine that plays classic first-person shooters Doom, Heretic, and Hexen with enhanced graphics, 3D models, and dynamic lighting.
- 31RigelEngine0★3 yrabandonedliveopen sourceReimplementation of a classic 1990s DOS platform shooter that reads the original game data and runs it on modern operating systems.
- 32Commander Genius0★4 yrabandonedlivehand-codedopen sourceGame engine that plays classic Commander Keen episodes with enhanced graphics, remastered music, and a built-in mod store.
- 33OpenMW0★6 yrabandonedlivehand-codedopen sourceOpen-source game engine that recreates Morrowind and lets players run the game on mobile devices using their own legally acquired data files.
- 34PrBoom+ (fork)0★unknownliveopen sourceGame engine that plays classic first-person shooter levels from a 1990s DOS game, requiring users to supply their own game data files.
Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.