Originally posted by Gary Campbell
I see now - there are two types of cheats.

There are the cheat codes that developers program into the game in the hopes (or not) that they are never discovered. Things like "Jump, Jump, Dodge, Shoot, Jump" will give you unlimited lives. These are the sort of cheats you see on PS2, XBOX, Nintendo etc. No file is altered.

There is another sort of cheat, which is what I immediately thought, that alters the game you play. These are things like aimbots, transparent wall hacks, graphic exploitations and things of the like. These were never programmed into the game and are only "developed" by hackers/crackers who reverse engineer (term used lightly) the binary and find ways to alter the binary. These are for games like Quake and first-person-shooters and are generally on PC's. I could be wrong, but I believe these types of cheats alter the binaries on one's hard drive.

Cracks are different again. They also alter binaries but only to circumvent licenses, cd-keys etc.

So - what was the question?

[/End hackers guide]
well games like quake have the ability to be modded. You can create maps, skins, and other little add-ins for quake (including cheats).