No modern system compatibility fixes applied. Mobile version is way much better, but it have lots of paywall and insane difficulty spike.

Judging by the reviews, no different with the retail version. Won't work on modern systems.

Don't even bother.

Glitchy graphics when using D3D accelerations. Runs well with software mode tho.

Atrocious release, lots of thing broke on Windows 7 or newer systems (sound specially).

Bad re-release. No fixes/patches added. Won't work on modern systems without extensive tweaks by the user.

Widescreen support, couple of graphic enhancements,SteamWorks integrations also included the expansion pack and the classic series.

Multiplayer-only Quake 3 with SteamWorks

SteamWorks integration

SteamWorks integration