Though I practically haven't played it, could it be Vangers?

This one should be fairly easy...

Grim Fandango

Funny, how I thought, if I ever win and get to post I'd post a screenshot from Darker. Lo and behold - someone else did within the first 2 pages. I have barely played that game but something stuck with me for all these years - I guess, its unique concept of charging ship's energy from light sources …

Just saw a movie Young Ones that used a similar effect to display a robot's parametric recording (as opposed to full video capture). I liked the notion (MINOR SPOILER) that if you knew what to look for in that output you would see it for what it was.