7/10. Answers the question, “what if Baba is You was a 2D platformer, and used color instead of code blocks for all of its rules (although much to the same effect?)”. Jump + move only.

Sort of tower defense, sort of puzzle game, definitely odd. 100% playable from mouse or touchscreen, but benefits from a keyboard nearby as it smooths the RTS challenges out a bit.

Movement only sokoban with a bunch of extras, like ice levels, lasers, and simultaneously moving pushers. Very one-hand friendly.

Game = 2D walking sim with excellent story and stage design + ragequit NES style: avoid single-hit kill monsters. Movement + 1 action button makes this perfect for one handed play.

Great A-RPG / Metroidvania / puzzle game, somewhat tricky for one-handed play but if you can manage 4 buttons and 1 stick, plus switching to other stick intermittently (aiming) it's very doable.

A very earnest clone of Vampire Survivors; just enough new to be mildly fresh, but enough faithfully copied to be very fun. Plays great with one hand.

well-done 3D explorathon/collectathon with such low reflex demands and challenge that it could plausibly be played one-handed, switching between move and look joysticks as needed.

8/10. A connect-all-the-paths puzzler vaguely reminiscent of Pipe Dream, but secretly it’s a jigsaw puzzle. Difficulty is one step above casual. Mouse or touchscreen, untimed.

2D puzzle game, minimal reflexes, no jumping. Movement only, no buttons. Mostly casual logic puzzles, 1-2 restarts at most per level. Open colored doors with colored floor switches etc. Fun, 7/10.

A very stylish but somewhat shallow 3rd-person 3D platformer; timed input for jump button and movement, but camera adjustment is rarely required, nor timed.