Depends. I'm not a fan of procedural generation most of the times. There are some games where it works, but far too often procedural generation is just a lazy excuse for not doing any actual level design.

I loved Diablo 1 and 2, which are basically Roguelikes with free saving and without permadeath. There are some other good old rogue-likes, but in modern 'Rogue-likes' this term has become a marketing phrase meaning really 'cheaply generated and badly balanced'.

What many Rogue-likes and all Souls-likes share that I don't like at all is the 'frequent dying as part of the game progress' mechanic. I don't like my character to die. I don't want to restart again and again. To me that's not fun, it is frustration. Which is the opposite of fun.

Preferred games
RPGS/JRPGS/ARPGS
Action/Shooter (EX Tomb Raider Uncharted etc)
Adventure games (point and click and parser based)
Some FPSes (Classic Doom etc)
Visual Novels (also Depending on the Story etc)
Platformers
Driving Sims (American Truck Simulator etc)
Sports games ( play those from time to time)
RTS

Off
Well there is really nothing I can think of to put here because I like to play games unless it is a genre that I avoid like the plague.


Avoid
Modern Day FPSes like COD, Battlefield etc.
Mobile games (But will check out Diablo Immortal though for lore purposes)
WOW (is the only RPG that I will avoid because it is so boring.
Multiplayer games (unless it is with people that I know in real life and not random people)

Want to tryout some day
The Halo series.

Preferred- Dungeon Crawlers, Blobbers, Co Op games.

Off- Stealth, Strategy, Survival, Survival Horror, RPG and JRPG, Open world, simulation, Digital board games, Mech.

Avoid- Everything else.

I actually like the sort of dying that happens in troll games, where doing the obvious thing can often get you killed in a funny way and sent back to the last checkpoint. (One thing is, in troll games, the trolls are in a specific non-random spot each time, and you can hence learn what you need to do to dodge them.)

Exactly, those clouds especially are enchanting!

But would those "LGTB" (quoting you, even though that's not the usual order) characters ruin an otherwise enjoyable game? (Perhaps the game is a really good flight simulator that happens to have "LGTB" characters.)

Imagine what those clouds can do to your fps though... :P
What!?!? I'm not even going to takeoff with LGTB passengers onboard! Hey, just joking there; don't want to offend anyone in here. :P

Maybe i should have written it differently when i said "Anything that contains LGTB(-and whatever) stuff". Maybe it would be better to say "Anything that targets the LGTB audience". Having said that, i didn't know the order of letters make any difference, since the meaning stays the same as far as i can see.

Preferred: Point & Click Puzzle Adventure, Puzzler, Simulation, Platformers, Strategy, City-Builders and Tycoons (even though I'm terrible at them), and more recently, Dungeon Crawlers and isometric-like turn-based and real-time with pause RPGs.

Off: Action RPGs, don't normally like them, but recently tried a demo of Divine Divinity and didn't find it too bad. Titan Quest also seems to appeal to me for some reason and I've heard good things about Nox. I think it stems from the first proper RPGs I played, which were Driftmoon and Avadon: The Black Fortress, and I just preferred Avadon over Driftmoon. Looking back, I was in my late 20s when I played them and I think Driftmoon was aimed at a slightly younger demographic. The other one would be Driving and Racing games. I'm quite fussy about them and I can't really put a finger on it, but I think I prefer either pure simulation such as Euro Truck Simulator or pure arcade such as Moto Racer, and not stuff like GTA. Also not massively keen on Action-Adventure games, but I love the older Tomb Raider games.

Avoid: Shooters. Sports. Horror. Visual Novels. Battle Royale. MMOs. Survival.

Yes:
In general, I like "adventure games" - across a lot of genres -
- Mostly: RPG, Immersive Sim, Point & Click, Survival Horror, Action, RTS/TBS, ...
Games with story, lore, a lot of interaction, ...

Maybe:
- TPS/FPS, if there's more to it than just shooting around. I hate FPP games wherein I spent a lot of time 'getting lost'.
- Grand Strategy / 4X / Simulations / ... only if it has a good campaign - I have no time for endless sandboxing. I actually don't play strategy/simulation often these days because they're huge time sinks and I have a big backlog.
- JRPG, but not if it involves silly teenagers or lookalikes. Also not: spreadsheets with graphics.

No:
Everything online, browser games, mobile (incl. handhelds), sports, roguesomething (I don't care much for permadeath), "reflex-testers", many games that dtgreene likes, ...
I play games for the experience, not for the challenge.

Are you sure?

I would rather play a mediocre/bad game of a genre I love (though not sure if I'd be good with the likes of Hoshi wo Miru Hito) than a good game of a genre I hate.

(For example, I would choose Hoshi wo Miru Hito over the likes of Final Fantasy 14 or Destiny 2.)

Worth noting:
* Many of your "no" games are games I happen to not like either (though perhaps some are in the "maybe/off" category for me), and RPG is also in my "yes" category (assuming it fits my strict definition of RPG; those that don't may or may not fit into that category).

There are, of course, exceptions... But these are the trends a few minutes of thinking put to the keyboard.

Particularly attractive:
* builders (parkitect, megaquarium, rimworld)
* non-grand-strategy 4x (civ4, stars in shadow)
* item-unlock-gated-exploration-backtrack-exploration games (Zeldas, metroid-vania -- yes, Zelda games [before the BotW turd] are the same genre as Metroid to me)
* overhead shooters (tesla v lovecraft)
* schmups (gradius)
* character build variety games (grim dawn)
* hybrid-genre games
* turn-based jrpg

Noticeably repellent:
* roguelike dungeon crawlers
* gridded dungeon crawlers (lands of lore, grimrock)
* puzzle
* grand strategy
* ultra-micro-resource-chaining builders (factorio, capitalism)
* most point & click adventures
* indie puzzle platformers
* rhythm
* "build a maze" tower defenders
* MMO or supremely multiplayer focused game (even if it somehow is done without DRM)
* dialog tree/wrpg (baldurs gates, etc)
* TES [yes, pretty much its own genre]
* games without pause or otherwise grossly disrespect the player's time (these piss me off enough to list, though it's not a "genre" -- but "infinite grind" games fall in here too, like diablo3 [were it DRM-free] or the disgaia series)

In general, I don't think highly of non-interactive entertainment these days, only going for it when I'm too busy eating to play. I don't like playing or watching shmups, but I guess a troll platformer or a kinetic novel could be comedy material for a funny streamer.

The big difference: I like RPGs when/if they're good "adventure games". The way that the RPG elements are implemented is of lesser importance to me. Also, I like (good) cut scenes.

Update:
Maybe:
- Platformers (I don't care about sub genres): sometimes I like playing an old SNES/Genesis one, but 15 minutes is more than enough.

No:
- Twitchy shooters (to be more specific), music games, puzzle games that are only about puzzles.

I don't care much about the later Telltale games - too much "click to continue". So I guess I'm not a fan of visual novels... I like cinematic games a lot - but "movie with pause" is taking it too far for me.

On:
Stealth
Puzzle
Adventure (Point and Click, puzzley kind of things)
Strategy
Some platformers
TIE Fighter (but not many other space fighters)

Off:
Anything with RPG in the description
Dungeon Crawlers
MMO
Horror
Grinders
Needlessly edgy/depressing stuff

Mini games inside the main game are usually a turn-off too