Multiplayer shoot em up games for PC/Windows with 4-player local/couch support
Airstrife: Assault of the Aviators
Players: 4 local, 0 online
Netherspace 2
Players: 4 local, 0 online
Jamestown
Players: 4 local, 0 online
Mercenary Kings
Players: 4 local, 4 online
Zytron II
Players: 4 local, 0 online
1993 Space Machine
Players: 4 local, 0 online
Aces of the Luftwaffe - Squadron
Players: 4 local, 0 online
Aether Drift
Players: 4 local, 0 online
Retrobooster
Players: 4 local, 0 online
XenoRaptor
Players: 4 local, 8 online
Rogue Continuum
Players: 4 local, 4 online
Shutshimi
Players: 4 local, 0 online
Friendship Club
Players: 4 local, 0 online
Zombie Party
Players: 4 local, 4 online
Dariusburst: Chronicle Saviours
Players: 4 local, 0 online
Spareware
Players: 4 local, 0 online
Stardust Galaxy Warriors: Stellar Climax
Players: 4 local, 0 online
Overdriven Reloaded
Players: 4 local, 0 online
Xenoraid
Players: 4 local, 0 online
Jamestown+
Players: 4 local, 0 online
Rogue Robots
Players: 4 local, 4 online
Riders 2491
Players: 4 local, 0 online
PuPaiPo Space Deluxe
Players: 4 local, 0 online
B.Ark
Players: 4 local, 0 online
Super Star Blast
Players: 4 local, 0 online