I buy and play all genres of computer games.

I suppose that I'm a hardcore PC game enthusiast.

What PC games do you personally like to buy and play yourself?

I have bought and played hundreds of other computer games on the Steam platform.

To be precise, I have 541 computer games in my Steam account.

What about yourself?

That's only for me to know. :)

How many computer games must I buy and play before I can be considered to be a hardcore PC games enthusiast?

At least 1,000 different PC games or more than that?

Not 31.

There's no definition of what being a "hardcore PC games enthusiast" implies. If you ask me, it's certainly not something quantifiable, though if you want to throw around numbers to impress people, be my guest. Remember though there are people out there, true monster enthusiasts, that will look at your "impressive numbers" and giggle. Always.

To give you a rough feel of things, I have spent about a month of on and off effort in building a mini-pc based Linux gaming rig which currently hosts about 170+ games running under Wine (some of them requiring binary (aka hex-editor) hacks to get working), 120+ DOSBox games, 30 ScummVM games and a lot of native Linux games too. I play and finish many of them whenever I get the time.

Numbers aside, I've never considered myself a "hardcore PC games enthusiast". Do I enjoy computer games and playing them on PC? Yes.

And to finally answer your question, it's mostly RTSes that I'm into, though action/adventure games and RPGs with good storylines are on the menu as well, with occasional space sims/arcades thrown in for good measure.

Is there any particular interest behind your question (like doing an university study) or are you just curious?

Amount of games has nothing to do with it, it's years and years of playing games that makes them. How many? I'd say at the least 30 years. Come back when you can claim that.

No, there is no particular interest behind my question.

I just suddenly got the idea to ask this question, and I just asked it on the forum.

I had no specific intentions at all for asking this particular question.

If you think you're a "hardcore PC games enthusiast", you probably are. Although there are always people more "hardcore" in some ways. Some have collections of more than 10,000 games, some are engaged in game preservation projects, some reverse-engineer old games to create fixes and source-ports, some do not own that many games but play them 16 hours a day...

As for the original question:

I do not like RTS games or sports games (with very few exceptions). Other than that I'm open for everything compatible with my life schedule...
Favourite genres would be RPG and first person shooters, or cross-overs thereof.

Buy and play: RPGs, adventure games, narrative experiences, platformers, FPS, TPS, puzzle games
Occasionally buy and usually regret afterwards: strategy, rogue-likes, arcade games
Hardly ever buy nor play: sports games, sim games, war games, multiplayer only / online games

I don't play platformers. Nor arcades. But I sometimes buy old ones out of nostalgia.

Deus Ex

You can never go wrong with one of the best PC games of all time.

A few years ago, I came across the biggest computer game collection in the world - a massive 500,000 computer games on a single disc!

https://www.amazon.com/500-000-Games-2013-Amr/dp/B00F1GAECW/ref=sr_1_2?keywords=500%2C000+video+games&qid=1577972263&sr=8-2

I highly doubt that any person in the world could possibly play every single one of the 500,000 different computer games in that humongous collection!

Mainly RPGs, TBS with RPG elements, maybe some managerial/non-military strategy games. Theme is very important, very strongly preferring fantasy, and normally dismissing postapocalyptic, dystopian and (maybe excepting some of those managerial/non-military strategy ones) modern/recent past/near future. Permadeath, save restrictions, time limits, procedural generation are other no-nos, usually firearms as well, unless perhaps either distant future stuff or early ones that are something of a secondary addition to characters' weaponry.