Rebuilt one to one
Ported function by function from the original program, quirks and bugs included. Every port is checked against the original — frame hashes, emulated reference runs, pixel diffs.
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Playable
Playable
Playable
Playable
Playable
In progress
Playable
Playable
Preservation is a team sport
A game preservation project
ENCORE
Engines of Nostalgia, Clean Open REimplementations
Old PC games rebuilt from scratch, faithfully, to run on whatever platforms come next. Bring your own copy of the game.
- exhibits
- 9
- play in browser
- 8
- platforms
- 4
One module, every platform
Each game compiles once to WebAssembly for gasm and runs unchanged on macOS, Linux, Windows and in the browser. A native build is always a backend away.
Bring your own copy
No original code, art, sound or data ships with any project. The game reads your disc or install, checks the exact version, and takes its data from there.
On display
Nine games from 1996 to 2008, each in its own case. Most of them you can play in the browser today, from your own copy.
PlayableExhibit 01 · 1996
Return Fire
Silent Software
OpenRF — function-by-function port
PlayableExhibit 02 · 1997
Grand Theft Auto
DMA Design
OpenGTA — function-by-function port
Exhibit in preparationGroundwork
Exhibit 03 · 1997
Interstate '76
Activision
OpenI76 — function-by-function port
PlayableExhibit 04 · 2000
Colin McRae Rally 2.0
Codemasters
OpenCMR2 — function-by-function port
PlayableExhibit 05 · 2000
Need for Speed: Porsche Unleashed
EA Canada
OpenNFSPU — function-by-function port
PlayableExhibit 06 · 2000
Sheep
Mind's Eye Productions
OpenSheep — function-by-function port
In progressExhibit 07 · 2001
Oni
Bungie West
OpenOni — function-by-function port
PlayableExhibit 08 · 2004
Ballance
Cyparade
OpenBallance — script runtime + physics port
PlayableExhibit 09 · 2008
Babo Violent 2
RndLabs
openbv — source port
Also on display in the gasm wing: DOOM and ScummVM, ported to the same runtime.
The whole collection →The conservation lab
How a game gets rebuilt
- Pick a game and pin one exact binary by size and CRC-32
- Map the program in Ghidra: every function, named and dated
- Decode every file format, proved by a hash over the whole disc
- Port function by function, citing original addresses
- Verify with deterministic hashes and the original's own code
- Ship one .wasm, desktop bundles and a browser player
For the next restorer
Skills for coding agents
Most of these ports were written with coding agents, in days rather than years. What they learned the hard way is written down as portable agent skills — plain Markdown in the open Agent Skills format, usable from any agent that reads them.
Browse the skills →Buy the games. Keep them alive.
ENCORE does not ship games — we don't own them. Find a copy, second hand or from stores like GOG, whose Preservation Program keeps classics working on modern systems, and support the Video Game History Foundation.
Read the manifesto →