Baba Is You :)

no, but for real. Puzzles are your best bet

Tunic

Just to give and answer I haven’t seen: I know they recently released a remastered version of Advanced Wars. Not so much logical thinking, but turn based strategy is a puzzle in its own way. And I loved those games when I was around 8-10 years old!

I would say Zelda, but that might be a bit on the difficult side

Layton’s Mystery Journey

Death Squared. Name might sound bad but it’s a puzzle game that pretty good

Picross

Portal and Portal 2 are now on the switch, not sure how age-appropriate those would be for an 8 year old tho

It’ll depend on the kind of puzzles they’re in to (if they’re in to puzzles at all), but the Picross S series is brilliant. Despite all the great games on the Switch, mine is pretty much a Picross machine that happens to be able to play other games.

Snipper clips?

I play puzzle games and there are no games in that genre that can last for a few years. (Even with user created contents.)

Any established games that actually can last years if you are into the genre(ie. Factorio, Minecraft, Terraria, or procedural content generation games) have established guides and wiki so eventually you don’t really think about doing creative stuff cause there are more effective/efficient ways to scale up.

And for games like Zelda:TotK where you can create many different crazy ways to defeat puzzles, mobs or bosses in the over world(since autobuild or zonai devices are disabled inside the shrine), it has that counter side of having to grind for materials or you need to rely on exploits like item dup to keep the boring side down. And, if you kid doesn’t even like lego, then chances are those “crafting” games won’t appeal to them.

What I think is best, is that you observe what they liked to do more, and then find games with mechanics they would like and have fun doing. And gradually transition to games with more complex progression or puzzles, before you let them try those really open ended crafting ones.

Most crafting games needs some basic skills to get better, cause the things you need to build relies on the materials you have. So you need to calculate how many certain parts needed to gather before you start building it. That would promote basic math skills and planning. Traditional puzzle games that focus more on logical thinking(ie. Talos Principle, Cogs, Toki Tori, Portal) mostly relies on spatial recognition/sequential order of breaking down tasks required to reach the goal.)

Last but not least, fun is essential to drive learning related skills to progress. There is no like one game to play and suddenly your 8 years old would become future a engineer or scientist. But the stuff he learned while tackle all the obstacles game designer throw at him will help him at problem solving for a long time.

Pokemon requires you to understand type matching, so like water beats fire but fire beats grass type of thing, and there’s plenty of numbers to get familiar with.

Snipperclips

BotW and TotK for sure too.

Into The Breach too.