Here is a list of I.P.s currently owned by Atari:
https://docs.google.com/presentation/d/1e-tl9Oqwnr78879Lnne_uhlsGkPWFK_z428ZmUaJjog/edit?pli=1&slide=id.g3415bb64202_0_0#slide=id.g3415bb64202_0_0The only ones I care about are:
Saboteur (if it's
The Saboteur, the brilliant 2009 third person shooter/GTA 3 style game),
Sentinel (assuming it's the classic
The Sentinel by Geoff Crammond, which it probably isn't)
System Shock (duh!)
Head Over Heels (assuming it's the isometric game from 1987, though I doubt I'd ever spend much time now with that style of game any more).
I remembered that some XBox 360 games that I liked were published by Atari (which of course doesn't necessarily mean that Atari could do anything further with the games' I.P), so I had a look at:
https://en.wikipedia.org/wiki/List_of_Atari_video_games_(2001%E2%80%93present)Legendary - an OK first person shooter with good graphics and set-pieces, unfortunately a few difficulty-spikes, and some very serious unpatched bugs that can result in soft-locking and IIRC even rendering the save-game unloadable, and it is automatic checkpoint saving, so you don't have an earlier, uncorrupted save-game file to fall back on.
The Chronicles of Riddick: Assault on Dark Athena - The first game, (The Chronicles of Riddick: Escape from Butcher's Bay), is superb, one of the best ever licensed first person shooter/melee brawlers ever made, and is included with the follow up (Chronicles of Riddick: Assault on Dark Athena), though I've not yet played the latter.
Blood: Fresh Supply - Because it's a port of the fantastic 1997 DOS game, though by all accounts this port has faults that you don't get if you play the fan made ports (NBlood, BuildGDX, or RAZE) instead.
I thought there were more PS3/XBox 360 games that I liked that were published by Atari, but I must be mistaken.