I know I know, macs are stupid, I should just buy a PC. But i'm never going to do that, so what are my other options? Screw Tetris and Peggle and MMOs, I want legit games.  I have Machinarium already, what else is available? 
<3 V

World of Goo is a must have. Beyond that though, there isn't much. Get CoD MW if you don't own it for a console for sure, and if Spore's your thing you could try that. I personally like playing Roller Coaster Tycoon 3, but that probably isn't for most. And that's pretty much every big name game released on Mac covered. 
 
Ever considered putting Windows on your Mac? Sure it means dealing with Windows, but it gives you access to a million times more games.

" @Andre: Cool, thanks =)
Yeha, I've considered it, but it's a 2006, and i've got about 33GB left on my hard drive. So yeah, I could... I dunno if it's worth it just for games though? "

Dragon Age: Origins is available for Mac at Direct2Drive.com.

Everything from blizzard. 

Blizzard games.
id games.

I guess Valve is working on Steam for Macs so maybe that will be out sometime soon.

gog.com is working on some mac stuff as well.

How dare you soil the great name of Peggle!

Some clever person was able to get Mass Effect working natively in OSX...I'm playing it now and it is awesome, even if some of the textures are rather screwy.  Sins of the Solar empire as well. Oh and they've also got Steam up and running under OSX, though they say there's goin to be an official version. I was able to get my Company of Heroes working on it. L4d1 and 2 works pretty well on the mac, as well as most of the over valve games.
You can also get Bioshock, C&C3, Red Alert, all Blizzard games, Age of Empires... 
tons of games really. If it works in Wine, it'll work in OSX with a little help and knowhow. 

Warcraft 3.   Gives you access to all the custom games over the yearS? How do you feel about Dota and Tower Defense? :P

Lolmac.

Photoshop is the best game for Macs!! 
 
Seriously though.  
Blizzard Games 
And Sims 3! ... Or not.. 

Hope this list can help you find what you're looking for Miss V :).

" Some clever person was able to get Mass Effect working natively in OSX...I'm playing it now and it is awesome, even if some of the textures are rather screwy.  Sins of the Solar empire as well. Oh and they've also got Steam up and running under OSX, though they say there's goin to be an official version. I was able to get my Company of Heroes working on it. L4d1 and 2 works pretty well on the mac, as well as most of the over valve games.You can also get Bioshock, C&C3, Red Alert, all Blizzard games, Age of Empires... tons of games really. If it works in Wine, it'll work in OSX with a little help and knowhow.  " 

Boot Camp.

Plants vs. Zombies is available for Mac.

" Lolmac. "

Aspyr Media has ported a good number of games to Mac, you should check them out:  http://www.aspyr.com/product/product_listing (Mac listings are specifically:  http://www.aspyr.com/product/search?title=&x=7&y=8&title_menu=&platform=1&genre=&esrb=). All or most of the games at PlayGreenhouse also have Mac versions I believe. There's also of course Boot Camp, but make sure you have the specs to run the games you want first. 
 
And for completeness, lolMac.

Just get bootcamp. That's what I do.

"Lolmac. "

World of Warcraft, starcraft 2 in the future.... Blizzard usually has Mac covered.

Zork? 
 
Heh, Rome: Total War was ported, IIRC. Don't know if mods work on it.

With a toothpick, piece of lint, and small section of string you can make your Mac run the fun, fun Alt + F4 game. Oh wait, no you fucking can't. 

They made CoD4, BioShock, Braid, and a few other good games for Mac. There's also all of PopCap and Blizzard's releases. 

MAC IS WHACK PC HAS YOUR BACK!

Sim games work for macs, right?

" Dragon Age: Origins is available for Mac at Direct2Drive.com. "

I wonder if everyone posting "lolmac" realizes that the entire Giant Bomb staff use Macs.  Aren't you all supposed to be sucking up to them as per usual?

" Boot Camp. "

" I wonder if everyone posting "lolmac" realizes that the entire Giant Bomb staff use Macs.  Aren't you all supposed to be sucking up to them as per usual? "

EA had started putting some of their stuff on the Mac as well so Sims 3 Spore and Battlefield games are on Mac. Besides that not too sure about other games even though I have a Mac I really only play console games. Besides Sims 3 when I want to burn some time.

Even though you already counted this out you can generally get the same quality computer for much cheaper than a Macintosh. If you really like the OS then just install it on the cheaper computer. There's really no reason to buy the Mac hardware.

Get a copy of Windows, install it using BootCamp, and play any game you want.

" I wonder if everyone posting "lolmac" realizes that the entire Giant Bomb staff use Macs.  Aren't you all supposed to be sucking up to them as per usual? "

" Even though you already counted this out you can generally get the same quality computer for much cheaper than a Macintosh. If you really like the OS then just install it on the cheaper computer. There's really no reason to buy the Mac hardware. "

Try CrossOver Games by CodeWeavers. I used it for a bit. Its pretty buggy but compatible with allot o games. They have a big compatibility list on the site. 
 
I just bit the bullet a few weeks ago and put XP on mine. Been playin the shit out of steam games now.... Yeah way late to steam I know but when you are used to the desolate mac catalog of games steam is effing awesome. 

" @oldschool: Ultra reliable? The hardware? You mean, more than any other hardware manufacturer? Significantly more? "

I'm starting to think Mac's trying to take over PC.

" @Bellum said:

" @oldschool: Ultra reliable? The hardware? You mean, more than any other hardware manufacturer? Significantly more? "

Yes.  In 8 years of running Mac, I have had a sum total of one problem when a hard drive died (which was easily replaced and all the data was retrieved).  That is an e-Mac, an i-Mac and a Macbook.  My friend runs a Mac shop, so I get a good feel for what goes wrong, and yes, some problems do occur with some units, just like all electronics, but compared to the hassles I had running Windows prior to that, and running Windows at work, I couldn't be happier.  Each has their place, depending on what it is you need to do with them. "

" @oldschool: I don't know, man, my experience with the hardware I put together myself hasn't been much worse than that. Back when I had a dell, the HD went out a couple months after buying it, and because I bought a shitty case I've got constant airflow problems with my current custom, but otherwise I've had no problems, and I've never been as cautious with my tower as I should be.  I think to imply that the hardware you buy from newegg or whatever is going to be unreliable is a huge exaggeration, at least. "

Heroes of Newerth has a Mac client

I don't know, but Peggle Nights may still be free at PopCap.com! GOGOGO!!!!