

Stardew is always a good one and uses very little battery. Noita and Streets of Rogue have been fun too, and are also easy on the battery (pixel art roguelites).
I love the Deus Ex series and Human Revolution is worth checking out; even if you haven’t played the prior ones. It’s been a while since I played through it but I remember being drawn to the story and liked the stealth aspects.
The new System Shock remake is also great and is decent on my Steam Deck battery.
Turns out none of the bridges it listed were real! /s