I don't know if this is the right place to put this thread, but as of yesterday the whole entire franchise is now been re-released to be freeware. What's really caught my attention is that all of the games are PC games except for the third game, Tribes Arial Assault, which is a Playstation 2 exclusive. I haven't heard of a game on that system to ever be free to download and play since the the PS2 has some of the most nastiest anti-piracy control I have ever seen in gaming. It's also worth noting that the game came out before August of 2003 meaning it lacks DNAS coding which basically blocks modified and pirated games either booted from some form of digital and/or physical medium, and anything that uses a bootloader such as Magic Swap, Game Shark, Code Breaker, or Action Replay cheat device, and Memory card exploits/save data like Free Mcboot , HD Loader, and USB Loader.
I used to play that game years ago when PS2 games online was still relevant, and then stupidly sold right before the official servers shut down , and not realizing that there are unofficial servers out there. Then again the game was on a PS2 CD-ROM format which were notorious for defective pressings and the console just flat out refuse to load the game due to the anti-counterfeit measures Sony used throughout the PS1 and PS2 lifetime.
Online Console thread: http://www.tribesuniverse.com/
PC Gamer Article: http://www.pcgamer.com/hi-rez-makes-previous-tribes-games-free/
Kotaku Australia Article: http://www.kotaku.com.au/2015/10/hi-rez-releases-all-tribes-games-for-free-starsiege-not-included/
Offical Website: http://www.tribesuniverse.com/