Hi-Rez studios has made all Tribes games available only for anyone to download freely.

Hi-Rez, developers of Tribes Ascend and the current owner of the brand, are celebrating 20 years of the Tribes series by making all games in the available to download, for free.

The list includes Earthsiege, all the way up to Tribes Ascend. Curiously, it also includes the PlayStation 2 game Tribes: Aerial Assault.

Some of the games include single-player modes, but they've always been known for their fast-paced multiplayer. Finding full servers of older games could prove tricky, but it's from impossible.

Here's the full list: Earthsiege, Earthsiege 2, Starsiege: Tribes, Tribes 2, Tribes: Aerial Assault, Tribes Vengeance, and of course Tribes Ascend.

Tribes Ascend, the studio's latest effort was recently updated after a long two-hear hiatus.