OpenArena is a free and open source first-person shooter game based heavily on the Quake III Arena-style deathmatch. Score frags to win the game using a balanced set of weapons each designed for different situations. Guns include a chaingun, rocket launcher, shotgun, and railgun.
OpenArena's style of play is very fast and requires skill to be played successfully online. Gameplay modes include Deathmatch, Team Deathmatch, Tournament, Capture the Flag, Elimination, CTF Elimination, Last Man Standing and Double Domination.
The game runs smoothly on my laptop with intel iris XE GPU. The only issue is the default game screen is too dark and sometimes hard to discern and aim, which makes the game less playable. The brightness can't be adjusted through game display menu or via console commands (say, \r_gamma 1.x). Just checked OpenGL driver and got "Mesa …edesktop.Platform.GL.default version 24.0.4 branch 22.08". Not sure if the problem is with the driver.