Reportedly found on a Wii test kit discovered at an e-waste recycling center and lovingly restored by fan group Free Radical Archive, the Star Wars: Battlefront 3 build is dated just a week before work on the game came to a halt. As such, it’s more than eight months further along in the development timeline than an Xbox 360 prototype that got leaked in 2016.
The build of Star Wars: Battlefront 3 that appeared online this month is compatible with a custom version of the Wii emulator Dolphin.
Source: Fully playable Star Wars: Battlefront 3 Wii build leaks online