The crossover of your nerdiest dreams.

[Crowser]

Issac from Dead Space finds Master Chief in his little cryogenic capsule on his way back to Earth and wakes him up because he needs help stopping the remnants of the Covenant from taking the rest of the Markers to help rebuild their army (and as an unintended side effect waking up more Necromorphs)

 

[SoldierofJustice]

Starfleet Academy vs Star Wars Tie Fighter. That would settle a lot of arguments in the end.

 

[Jirlond]

Jedi in the Marvel universe.

Nice one - that would be bitchin, I think they would suck against some back guys though.

 

[jonnywarlock]

Warhammer 40,000: Dawn of War meet StarCraft.

Also, Warhammer Fantasy meet WarCraft 3.

 

[SteakHeart]

...would finally put an end to the damn "who ams bettar" arguments.

I thought about something like that, but with alex and cole using army of two style co-op.

 

[cooperace27]

Master Chief and Gordon Freeman fight a team up of the Combine and the Covenant and at the same time a team up of headcrabs and Flood.

The Lone Wanderer (FO3) and The Boss (SR2) fight Ultor and the Enclave.

Batman and Nite-Owl fight, well, anyone.

Rorschach and The Question (Awkward, since Rorschach was created as a mirror of him) team up.

Marcus Fenix, Master Chief, Gordon Freeman, The Boss, The Lone Wanderer, Commander Shepard, Soap McTarvish, Bill, Francis, Zoey, Louis, and Batman fight all of their foes.

All I read was Batman and Nite-Owl fight against anyone. I thought that was an amazing idea.

 

[suhlEap]

hogs of war versus worms in a fight to the death! very similar games, but who is better?

 

[Baconator96]

also, Portal 2 and HL2, Epidode 3 should both be the same game.

 

[curlycrouton]

Oblivion crossed with Just Cause.

Or rather, Just Cause's ridiculous, stunt-filled gameplay, in Cyrodiil. Oh what hilarity would doubtless ensue.

 

[traceur_]

Alex Mercer, Nero and Ryu Hayabusa teaming up to defeat some super powerful giant robot/demon/monster thing.

 

[notsosavagemessiah]

Marvel VS DC + Capcom/SNK. Who gives a shit why, just know that it'd be awesome to see batman boot spiderman in the face while captain america and superman take on Gouki and Rugal.

 

[Hazardlife]

Alien and Predator have a tag-team wrestling match against Gordon Freeman and the Master Chief. 3Dog does the commentating.

Following this, my anime nerdiness breaks through, with a giant mecha brawl of Sunrise (Gundams, Votoms, Knightmares) vs Gainax (Evangelion, Gurren Lagann, Canti).

 

[Remleiz]

Transformers [G1 ] Resistance cross over

Humanity and the Autobots against the Chimera and the Decepticons. Hell yeah

 

[Space Spoons]

Star Fox/Star Trek. I actually wrote a pretty awful fanfic to this effect years ago. The only decent part involved Riker punching Falco for something I can't remember.

I still think it'd be cool, if handled right.

 

[scnj]

Posted this one in a tread a few days ago, but here goes...

The Elder Scrolls V: Fallout 4

Oh no! The feud between the Dark Elves and High Elves has culminated in a massive nuclear war! 200 years later, Tamriel is the Imperial Wasteland. Let out of the vault prison cell by the Vault-Tec Emperor, Overseer Septim, you must join the Dark Brotherhood of Steel and their enigmatic leader Lucien LaBurke in the fight against the remains of the Imperial Enclave and their dangerous leader Mankar Henry Eden.

"I've fought Mirelurks more fearsome than you!"

 

[Baconator96]

the ultimate crossover:

Ash Williams in Left 4 Dead

 

[Haydyn]

A Halo sandbox crime game.

 

[Lord Beautiful]

Tekken Vs. Street Fighter

I can almost taste the awesomesauce.

 

[Syvari]

Starcraft and Halo crossover, so Jim Raynor can beat the shit out of Master Chief and the Marines can get all their stolen costumes back from the SPARTANS, and beat the shit out of them too.

And the protoss would say "bullshit, this is a carbon copy of us any no one calls the game creators out on this!" while looking at whatever the hell those blue Halo aliens are called that are obvious rip-offs of the Protoss (I think they are actually called Arbiters, which is the name of a Protoss unit). Then the Protoss would beat the shit out the the Arbiters-or-whatever-they-are-called.

And the Zerg would just go batshit crazy and destroy all of the flood (I came bricks just thinking about this one).... and then Kerrigan would rip that robot dude (guilty spark or something) to pieces.

My nerdiest crossover of my nerdiest dreams.

Oh yeah.... and after Raynor beats the shit out of Master Chief, Zeratul will kill him in a decisively non-dramatic fashion, as the final and ultimate insult to Halo's "epicness".