As far as game selection goes... It's complicated.
We're exclusively looking for games that don't feature guns. We're looking for slower paced and turn based games with an emphasis on reading for one of the kids. He's an early reader, but progressing quickly.
For the other kid, we're looking for games with constraints and external goals. He gets lost (as in very deeply invested) in open world and sandbox games like minecraft, to the detriment of everything else around him, so we're looking for games where that's not possible. He's still barely reading, so games that *teach* reading are great, but games that *require* reading are probably out.
The whole thing is going to run on linux, so ... games that run on linux or can be emulated on linux are a must.
My morals dictate that we should focus on indie games when possible, but that's just personal preference and not a requirement.