Make up your own game genre!

[BTGBullseye]

Rage Simulator.

 

It lets you do things, but you're never as good at any of them as the AI, the AI killsteals, and you never win unless you want to lose.

[AP_Pastor]

Evil Company Simulation.

 

Be a CEO of a company people would like to see die. Comes with several editions: EA Edition, Konami Edition and several more.

[Selfsurprise]

Mum Simulator: Think of any game in the world. In Mum Simulators you pay the the protagonist's mum, going about worrying about if he will ever settle down and meet a nice, stable lady/man/significant other/necromorph.

[BTGBullseye]

CPU simulator.

 

You are forced to compute like a CPU would... Any inaccuracies cause a glitch, eventually causing your system to explode. (literally, not just in the game)

[Psychotic Ninja]

The Nintendo: Every game is the same, played on the same system.

[BTGBullseye]

Controller emulator simulator.

 

It emulates controlling a controller... Now with controller support!

[Professor Vex]

Top down third person bad camera operator sim.

 

You have to control the third person camera in someone else game, and make sure that they never have a chance to react to traps, or enemies.

[Scampi]

Accordion Assault

[AP_Pastor]

Polyrhythm games - A musically complex version of Guitar Hero or Rockband, featuring songs from King Crimson to Frank Zappa

[BTGBullseye]

Suffocation Simulator.

 

It involves you using a camera to record you choking yourself, and gives a rating based on how dead you appear. Winners get a free cemetery plot.

[Selfsurprise]

Forum Simulator Game: Kind of like a mixture of text adventure and Wario Ware-style puzzler, FSG's requires you to interact with a fictional forum filled with dynamic AI users, competing and contributing to various topics and thread games, making lifelong friends as well as sworn enemies along the way.