I keep wondering why people claim Escape Plan is only 8xx MB big. I have the Vita in front of me and this game occupies a whopping 2044 MB without any DLC, except the one that you get for free.

Mutant Blobs Attack is 275 MB on my Vita accoring to the Data Manager but only 135 MB on my PC. Maybe my back up is missing a patch or sth. Frobisher Says is 438 MB. 

Maybe we can incorporate PSP and PS1 game sizes here because I always wonder how big certain games are and if they fit on my memory card?

Anyway, currently on my PS Vita I have Monster Hunter Freedom unite at 814 MB, GoW: Chains of olympus at 1121 MB and Tactics Ogre at 1122 MB. Also Vagrant Story at 92 MB and MGS at 728 MB.

I dunno about these sizes from first hand experience; I don't own a Vita. I'm just using semiofficial numbers.

Anyway, the PS1 and PSP lists sound like a good idea. I'll do the PSP first.

Looking at the game on the Vita's Playstation Store right now.  It says 541MB for just the demo and 842MB for the full game ($14.99).  I don't know what else to say but those are the numbers from Sony. 

I've made a PSP version of this thread. I'll link to it from the first post.

3ds games can supposedly be up to 8 GB in size

Just to show that I'm not (entirely) full of shit:

Am I missing something here? Am I supposed to manually erase temporary files or something? because I remember clearly that there was an update that was about 750 MB big. Like I said, I didn't buy any DLC for this game because it sucks.

No, I believed you.  I got Peace Walker on my Vita and the actual game is somehow bigger than the download.  I think it had some compressed data or something.  I don't know.  It's crazy.  On a side note, I've always been tempted to give Escape Plan a try but the reactions have been so mixed that I've never pulled the trigger on the purchase.  Glad to see I didn't waste my money.

No it's a really good game! Especially after all the patches.

I'm surprised that most of these games are comparable to the size of psp games (under 1.8 GB) but have far better graphics than the psp! It might be a while, before games are 4GB here.

How are Xbox/ PS3 games so much bigger then?

Great idea. I will buy for a price cut on Resistance: Burning Skies in order do buy this game, it is kinda big for my actual memory card (8gb).