sf4e rollback: test release 1

sf4e rollback, test release 1

Rollback netcode for Ultra Street Fighter IV on Steam, as a mod. Nothing in the game folder is touched; delete the folder to uninstall.

This is a test build. It works, and it needs people playing it to find what breaks. Please report anything odd.

Play

1. Download sf4e-rollback-v0.0.1-test1-win32.zip and extract it anywhere. Not into the game folder.
2. Open server.txt and put the lobby server address your host gave you on a line by itself.
3. Have Steam running, then double-click Launcher.exe.
4. Main menu → Multiplayer Battle. Press Start or light kick on your controller if asked.
5. One player presses Create lobby and gets a six-character code. The other presses Join with code and types it.
6. Both pick a character and press Send chara. The match starts when both are ready.

No IP addresses, no port forwarding. Set input delay to 1 or 2; raise it if the match stutters.

Full instructions are in INSTALL.md inside the zip.

Known limits

• Two players per lobby. No spectators yet.
• Character and stage are chosen in the mod's window, not the game's select screen.
• Steam's own online modes are off while the mod runs.
• Both players must use the same build; mismatches are refused with a message.

Reporting a problem

Attach %APPDATA%\sf4e\logs\sf4e.log. If the game crashed, also attach the newest file from %APPDATA%\sf4e\crash\. Say which characters were played and whether you were the one who created the lobby.

Hosting your own lobby server

sf4e-lobby-server-v0.0.1-test1-win32.zip runs on any Windows machine or VPS. See SERVER.md inside it.

Credits

Built on sf4e by Anthony Danducci: the reverse-engineered engine, the save states and the GGPO integration are his work. This fork adds the lobby server, code-based matchmaking, the relay, sync diagnostics and packaging.

Street Fighter and Ultra Street Fighter IV are © CAPCOM.