The talos principle 1 & 2. Playing through 1 now, and it's excellent. Some of the puzzles are complex, but most can be solved in 5-10 minutes and give a nice "ah-ha!" moment. It reminds me of portal 2, but with a heavier and more ambiguous story about the nature of life and consciousness. Highly recommended.
Also been playing some Dome keeper and Peglin. Both also excellent in their own ways.