Can't Drive This is a competitive co-op (it's a thing) multiplayer party racing game. Drive your monster truck WHILE your friend builds the road in front of you! Oh, and don't go too slow, OR YOU'LL EXPLODE! Like in that Sandra Bullock movie, in which she kinda does the same thing, but on a bus. Also, she doesn't explode (Spoiler alert). Also, Keanu Reeves was in the movie.

Note: The game works multiplayer online using online servers. It does NOT work offline LAN.
 

Carrier Command 2 is the real-time strategy game that puts you in command of a futuristic carrier capable of deploying a vast array of aircraft and amphibious units. Compete against AI or human players and hop into every single vehicle to take matters into your own hands!

Note: The game works multiplayer LAN.
 

Gunfire Reborn is an adventure level-based game featured with FPS, Roguelite and RPG. Players can control heros with various abilities to experience diverse Build gameplay, use randomly dropped weapons to explore random levels. This game can be played by single player, or Co-op up to four.

Note: The game works multiplayer LAN. Use the shift+tab overlay to invite/join when needed.
 

Grey Goo is a real-time strategy (RTS) game that combines classic strategy mechanics and a balanced combat system with an emphasis on base-building. It puts you at the center of a tactical struggle for survival—and ultimately, control of Ecosystem 9.

Version: Game version v0.34.601126

Note: The game works multiplayer LAN.
 

Drox Operative 2 is a starship action RPG with warring alien races, fierce space battles, a dynamic, evolving galaxy, and co-op multiplayer.

Note: The game works multiplayer LAN.
 

Command & Conquer and Red Alert are both remastered in 4K by the former Westwood Studios team members. Includes all 3 expansions, rebuilt multiplayer, a modernized UI, Map Editor, bonus footage gallery, and over 7 hours of remastered music. Game version 1.0.2.3

Version: 1.153.11.25007

Note: The game works multiplayer LAN.
 

Hack and slash? Check. Twin-stick-shooter? Check. 4 player coop to slay hordes of aliens & bosses with your friends? Check. Skills, upgrades, weapons, gears, talismans and more to make you stronger? Check. Wake up, bounty hunter. We have a mission for you. Time to clean up the scum of the galaxy.

Game version 1.0.2.3

Note: The game works multiplayer LAN.
 

Bang-On Balls: Chronicles is an oddball of a 3D platforming game with collect-a-thon spin! Become a reckless hero as you do missions, collect items and search for secrets rolling through various (inaccurate) historical events!

Game version march/2021

Note: The game works multiplayer LAN.
- Invite players from the shift+tab menu (I think you have to unlock the 1st world first)
- Find an ethernet cable on the level and interact with it - this will connect you to a random player (LAN offcourse and if multoplayer settings are correct in the pause menu)
 

Lead the revolution with an army of flamethrowing Boars, mustard gas-lobbing Skunks, and paratrooper-puking Owls. Tooth and Tail is a Real-Time-Strategy game featuring Single Player, Online Competitive Play, Split Screen, Replays, and more. Build a base, lead your army, eat your enemies!

Game version 1.8

Note: The game works multiplayer LAN.
 

Heroes of Hammerwatch is a rogue-lite action-adventure game set in the same universe as Hammerwatch. Encounter endless hordes of enemies, traps, puzzles, secrets and lots of loot, as you battle your way through procedurally generated levels to reach the top of the Forsaken Spire.

Note: The game works MP LAN.
 

Carmageddon: Max Damage is the latest instalment in the legendary Carmageddon series. Carmageddon is the driving sensation where pedestrians (and cows) equal points, and your opponents are a bunch of crazies in a twisted mix of automotive killing machines. It’s the ultimate antidote to racing games!!

Note: The game SHOULD work Multiplayer LAN. Use the online options. I haven't had time to properly test ;-).
 

Getting Over It with Bennett Foddy is a punishing climbing game, a homage to Jazzuo's 2002 B-Game classic 'Sexy Hiking'. You move the hammer with the mouse, and that's all there is. With practice, you'll be able to jump, swing, climb and fly. Great mysteries and a wonderful reward await the master hikers who reach the top of the mountain.

Note: The game works multiplayer LAN/online.
Make sure to enable Multiplayer in the corner of the main menu. Launch a game, pause it and you will see multiplayer options in the left top corner. For online disable the steam authentication check.
 

Be the leader of wobblers from ancient lands, spooky places, and fantasy worlds. Watch them fight in simulations made with the wobbliest physics system ever created, make your own wobblers in the unit creator and send your army off to fight your friends in multiplayer.


Note: The game works multiplayer LAN.
 

Battle of Empires :1914-1918 is a story driven RTS, that re-lives some of the bloodiest battles of “The Great War”. The missions include some of the most fearsome weaponary employed of the period. Sabotage, stealth, trench warfare, gas attacks, artillery and mobile infantry - BoE has it all!


Note: The game works multiplayer LAN.
Make sure to select matching DLC's when playing multiplayer.
 

Green Hell is a sweltering struggle for survival in the Amazonian rainforest. Clinging to life, the player is set on a journey of durability as the effects of solitude wear heavy not only on the body but also the mind. How long can you survive against the dangers of the unknown?

Note: Game version 2.0.4

Note: The game works multiplayer LAN

Super Arcade Racing is a retro-inspired racing game with an intriguing story, online and local multiplayer, more than 80 unique tracks, and full car customisation.

Note: The game works multiplayer LAN

Volcanoids is a first-person, base building survival game set in the steampunk era where humans and technology meet. Explore a volcanic island, operating giant drills and enduring eruptions triggered by mechanical beings.

Note: Game version 1.24.507.0

Note: The game works multiplayer LAN.

The critically acclaimed RPG that raised the bar, from the creators of Baldur's Gate 3. Gather your party. Master deep, tactical combat. Venture as a party of up to four - but know that only one of you will have the chance to become a God.

Note: Game version 3.6.69.4648
Includes ONLY the defenitive edition and NOT the legacy version.

Note: The game works multiplayer LAN.

Biped is a coop action adventure game with a strong focus on moment-to-moment collaboration between 2 players.

Note: The game works multiplayer LAN.

And you thought being a Terraforming Engineer would be a quiet life compared to being a Space Marine? Blasting rocks to make way for new settlements on Tyrian seemed like a quiet life, but your long-time Huzundra friend is now dead - bless his lizard hide. Murdered! And obviously Microsol, the Terraforming company wants you dead too! It's that huge new rock formation you and Buce uncovered - it's Gravitium, and it's priceless. Tyrian is the only planet where it exists in commercial quantities, and Microsol are determined to control it.

Note: The game works multiplayer LAN.

Challenge your friends in a crazy, wild and frenetic fight with an overwhelming amount of characters, objects and stages. As you play, you will unlock new things, obtaining different, weird-looking and awesome variety.

Note: The game works multiplayer LAN.

The nefarious turtle, Devan Shell, has built a time machine as part of a diabolical plan to rewrite Carrotus' past. Now, only our hero along with his spaced-out little brother, Spaz, can stop him from turning history on its ear!

Includes:
Jazz Jackrabbit 2
Jazz Jackrabbit 2 - The Secret Files
Jazz Jackrabbit 2 - Holiday Hare
Jazz Jackrabbit 2 - The Christmas Chronicles
Jazz Jackrabbit 2 Plus

Note: The game works multiplayer LAN.

ConcPerfect 2017 is a skill-based 3D platformer, with some puzzle elements. Overcome a variety of obstacles with the use of a propulsion-inducing blast (conc grenade) and careful maneuvering.

Note: The game works multiplayer LAN.