However, there are a few options, though some might be considered obscure:
* Qix (Arcade, 1981): A classic arcade game where you enclose areas of the screen with a line.
* Quake (PC, 1996): A groundbreaking first-person shooter that popularized the genre.
* Quake II (PC, 1997): The sequel to Quake.
* Quake III Arena (PC, 1999): Focusing on multiplayer deathmatch.
* Quake IV (PC, 2005): A single-player focused installment.
* Quake Champions (PC, 2017): A modern take on the Quake series.
* Q*bert (Arcade, 1982): A classic arcade game where you move a cube-shaped character around a pyramid.
* Qix++ (Mobile, 2012): A modern adaptation of the classic game Qix.
* Quake Live (Browser, 2010): A free-to-play browser game based on Quake III Arena.
* Quiplash (PC, 2016): A party game where players have to come up with funny answers to prompts.
Let me know if you'd like to explore other letter-based gaming challenges!