Any kind of game
EDIT: changed from suggested to mentioned and made the title more clear
Le fabuleux voyage de l’oncle Ernest (the translation would be Uncle Ernest’s Fabulous Journey, but I don’t think it’s been released outside of France)
I don’t remember much of the game but I loved it as a kid, around 9-10.
The game is about the traveling journal of our adventurer uncle: Ernest. From what I remember it’s like a virtual treasure hunt, trying to find clues to find our uncle. It’s a lot of minigames going through Africa, Istanbul, Borneo …
So I just invented a game.
I kinda like it a bit.
Of course, I’m not going to tell you its name or its rules, or I will have mentioned it on the internet, which will make it a paradox.3D Movie Maker (1995) - Game for Windows 95
So if I’m not counting close friends recommending games to me as “mentioned on the internet” probably Crystal Project, according to Steam. Otherwise, we’d need to go back to things that I was told about by family members way back in the day that I both like and haven’t seen mentioned online since, which is trickier. Thief The Dark Project, possibly?
If you haven’t played Thief: The Dark Project I recommend it and its sequels. Don’t play Thief (no subtitle) though, it’s AAA garbage.
Some of my favorites that I don’t usually see mentioned would be Inmost, that game is fantastic, and Momodora Reverie Under the Moonlight. Honestly the whole Momodora franchise is great, worth checking out.
Go
Hostile Waters: Antaeus Rising. It’s the only game in the Carrier Command-like subgenre of RTS that isn’t part of the Carrier Command series. Shockingly well written, too, for what it is.
I don’t see many people ever really talking about them at all outside of fans, but Krosmaga and One More Gate from Ankama.
Krosmaga is a deck builder autochess like game (with something like 9 or 10 different classes/dieties with different abilities to build around, alongside a bunch of non-specific cards any class could use in their deck). Place summons/spells to protect your Dofus (dragon eggs, to simplify what they are) and destroy theirs. Matchmaking is either play against computer, who randomly selects class and gets default deck, or just flatout random player. Don’t think there’s any selective matchmaking, sadly.
One More Gate is a short enough roguelite game where you accidentally destroy a portal and have to fix it by beating bosses in new areas, usually after multiple failed runs. Has meta progression, which I personally am not the biggest fan of.
Hammershlagen
Xcom 2.
A friend recommended it to me because he thought I would like it. It’s my favourite game and I have 100% it.
I haven’t seen “The London Game” on the internet; that can be a lot of fun.
Most of the other stuff I like I’ve seen somewhere or other.
Too many ninjas
Naptunes pride
I never see Cultist Simulator recommended but it’s one of my favorites. It really captures the idea of studying the esoteric arts, and has a surprising amount of world building given how simple the presentation is.
Cultist simulator made me depressed. I simply cannot play it.
Star Goose
I played a game called Mindtrap as a kid, it was a box of different cards with puzzles on them.
The actual game is you played on teams to answer these riddles, but I just looked at the cards and tried solving them. I think they revamped it more recently.