Dolphin Emulator 2603 Adds Triforce Arcade Support, Major Performance Gains

Dolphin's Progress Report 2603, released March 12, 2026, marks the first time the emulator has supported arcade hardware: specifically the Triforce, the joint Sega, Namco, and Nintendo platform that powered cabinet titles like Mario Kart Arcade GP, F-Zero AX, and The Key of Avalon. For a project that started as a GameCube emulator in 2003 and added experimental Wii support in 2008, stepping into arcade emulation is a genuine milestone.

The credit for getting Triforce running inside Dolphin belongs to crediar, whose commit "2512-395 - Core: Add Triforce Support" landed the foundational work. What makes that achievement notable is the conditions under which it happened. According to Readonlymemo, crediar made "a frankly ridiculous amount of progress with Key of Avalon without access to an original arcade machine setup or documentation," with reverse engineering reduced to "looking at the game's assembly [code] and seeing which commands it sends and what responses it expects." Since that initial merge, the Dolphin team reports that the community has filled in the gaps: "multiple users who own fully operational Triforce cabinets coming forward to give us more information on how they work or to help us run hardware tests."

The 2603 release ships several concrete Triforce improvements beyond the initial support. Dolphin now automatically inserts Magnetic Cards for cleaning checks. Work on integrated namcam2 support for Mario Kart Arcade GP and GP2 has started, which will eventually let those titles run without a separate external program to handle camera emulation. F-Zero AX GameCube Memory Card support has been solved and is flagged as coming soon. Several multicabinet emulation bugs have been identified and are in progress, with fixes expected to broaden hardware compatibility. Game regions are currently hardcoded, though a GUI setting to change them is coming.

The one remaining holdout is The Key of Avalon and its sequel. Readonlymemo describes the game as "somewhat playable in Dolphin, but not fully," with the touchscreen protocol across its four sit-down cabinets representing the principal obstacle. The Dolphin team's own Progress Report states the touchscreen protocol "has been identified and solved," which sits in tension with Readonlymemo's account of the issue still being open. Both claims are attributed to separate writeups; the current commit history would clarify whether a fix has actually merged.

On the performance side, the MMU fast-mem extension in 2603 expands fast-mem coverage to page-table memory, and the cumulative effect on demanding titles is tangible. Rogue Squadron III, long cited as one of the heavier GameCube titles to run accurately, now reaches full speed as a result of these changes.

Desktop users playing off a NAS get a new "Load Whole Game Into Memory" setting, which copies the entire game to RAM at launch, lets the source drive go idle, and eliminates the network-related slowdowns that have plagued that setup.

Android gets targeted fixes in 2603: a bug dropping held inputs on AYN devices is resolved, and a crash triggered by connecting real Wii Remotes has been fixed. The Play Store build weighed in at 8.57 MB when it uploaded at 8:37 AM UTC on March 12.

With named contributors JosJuice, JMC47, and MayImilae all listed in the progress report alongside crediar's foundational arcade work, 2603 is the kind of release where multiple threads converge at once. The Triforce pipeline is still being built out, but the core plumbing is in place and moving fast.