Protocol Meltdown
Manage BioFission Research's new highly unstable prototype nuclear reactor codenamed "Project Vermillion," produce enough power to satisfy demand and turn a profit, all while preventing it from destroying the entire facility.
The top results based on the latest update are Cosmula [Score: 1.1], Blacklist Brigade [Score: 1.0] and Police Stories: The Academy [Score: 1.0] The top rated games you can find here are Alien Swarm [SteamPeek Rating: 9.5] ranked #7, Door Kickers [SteamPeek Rating: 8.5] ranked #8 and CS2D [SteamPeek Rating: 8.3] ranked #4 Also don't forget to check the newest releases Zombocalypse [Release date: 2025-03-03] ranked #33, Cosmula [Release date: 2025-02-26] ranked #1 and Diced Up! [Release date: 2024-10-31] ranked #21 While it is tempting to play with the newest and the best, there might be some other gems in the results, like Police Stories [SteamPeek Rating: 7.6] ranked #20, Halo: Spartan Strike [SteamPeek Rating: 5.9] ranked #25 and Ultimate Zombie Defense [SteamPeek Rating: 6.2] ranked #26.
Manage BioFission Research's new highly unstable prototype nuclear reactor codenamed "Project Vermillion," produce enough power to satisfy demand and turn a profit, all while preventing it from destroying the entire facility.
Engage in an intense space shooter that you can play in single-player or multiplayer with up to 6 players. Play a variety of different spaceships, each with their own unique stats, components, and playstyles!
Blacklist Brigade is a co-op focused top-down shooter game, where players as a part of a mercenary group fight against banana republic dictators and other evil scoundrels.
Welcome, trainee! Use tactics and special equipment to become a true cop in the free version of Police Stories: The Academy. Neutralize criminals, search for clues and find a "rat" in the police station alone or in co-op with a partner.
CS2D is a free fast-paced top-down multiplayer shooter. Featuring many different game modes, a built-in map editor and much more.
Defend the castle, obstruct enemies, and prevent the insidious corruption from infiltrating the heart of the realm.
Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *
Co-operative multiplayer game and complete code base available for free.
Door Kickers is an innovative realtime strategy game that puts you in charge of a SWAT team and lets you command them during a tactical intervention.
Blast your way through countless leagues of enemies in this intense top-down shooter.
Purge the undead! Intense action-shooter with deep rpg elements, including upgradeable guns and armor, unique class skills, and class special abilities. Entire game can be played single player or as a 4-player online co-op game, including PvP events like Last Man Standing.
Phantom Squad is an intense 1-4 player tactical top-down shooter combining fast-paced combat with real-time strategy. Assemble your squad, plan your route, choose your loadout, and execute. Use a versatile arsenal to tackle brutal missions; stick to the plan or adapt to survive the chaos
Inmortuae Metuunt: Rise of the Undead features a PvE battle with wave progression, the further the player goes, the harder it gets. It offers 4 characters with distinct stories and abilities, along with a catalog of maps and weapons.
An apocalyptic disaster has left the door open for all kind of creatures to invade our home! Jump right into action in this hero-top down shooter-coop-roguelite experience, power up your survivors, defeat bosses and try to see how far you can get!
Gear up to dash, scale, and snatch the flag, then deliver it to your opponent's base with a mix of charm and explosive arrows. Outwit your rivals and win 3 out of 5 rounds to claim victory!
Unleash Your Inner Warrior in a Fast-Paced Top-Down 2D PvP Extravaganza! Strategy meets skill in intense player-versus-player combat! Master your hero, outsmart your opponents, and rise to the top in this vibrant, action-packed battleground.
Exterminate zombies in style with up to 4 players in this action packed co-op top-down shooter.
Team up with friends to fight hordes of zombies and mutants that roam post-apocalyptic earth. Need extra lives and allies to help you fight? Just clone yourself and your weapons! Protect your fabricator to become an unstoppable force, able to take on any mutant in your sights.
Grab your pickaxe and enter the mines! Search for treasures and fight against other miners in this fast, round-based multiplayer game (up to 10 players over LAN or internet). Comes with a map editor and an addictive single player endless mode where you fight waves of enemy monsters.
Little Savior is a real-time battle action game in which many units fight with each other. The player operates directly as one of the units to fight.
A fresh take on top-down shooters with an emphasis on tactics that forces you to make split second decisions. Neutralize criminals, rescue civilians and defuse bombs in Single Player mode or Co-op. And remember - shooting first is not an option!
Survive as long as you can in an endless bullet hell with randomized stats and weapons.
Zombie Slayers is all about staying alive as long as you can. With plenty of weapons and defence options available you will face increasing amounts of zombies trying to end your career as a slayer. So, how long will you survive? Including playing as zombies (multiplayer-only).
A new look at tower defense, full of dynamics and tactics! A terrible virus has struck humanity. You will have to build defenses with your friends or alone and fight off the hordes of zombies who want to get to you.
Retro-style sci-fi top-down shooter and strategy game.
Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies. *DirectX feature level 10 required*
Team up or face it alone in this top down zombie slaying defense adventure! Featuring up to 4 player online co-op, cleanse the infected wave by wave and upgrade your base with traps & defenses to build the Ultimate Zombie Defense. Can YOU stop them?
Sequel to the best-seller The Red Solstice. Plan your strategy and infiltrate a real-time tactical battlefield - alone or with up to 7 squad members. Can you demonstrate the combat prowess to survive and secure a future for humanity?
Repossession is a 2D Action-Packed Shooter, Heisting Game, with Deathmatch and Multiplayer Coop to Come - Either fighting their way through missions, robbing bank after bank, or with each other. (soon) - they descend through Chaos for Big Earnings and pay off the remaining debt.
Multiplayer game of hiding and seeking, also with bots. Become an alien and use stealth to deceive others, or a marine and survive long enough to escape.
Synthetic Paradox is a sci-fi action rogue-lite mixed with tower defense elements. Fight never-ending waves of enemies and bosses, collect items and build up your defenses alone or in co-op for up to 4 players! Discover unique combinations of towers and items to help you protect your Core!
ST brings the most intense, tactical-action experience to Steam. Select your custom loadout, plan out strategies and accomplish your objectives. Addictive Survival mode and unrivaled multiplayer including Squads (1 vs 1, 2 vs 2, 2 vs 1)
Work together to survive the devastating Dinosaur horde in huge, endless environments.
Dive into a top-down shooter where you’ll battle relentless waves of zombies, either solo or with friends! Face off against formidable bosses, unlock upgrades through a tech tree, and enjoy a casual gaming experience crafted with passion by an indie developer.
Plunge into the atmosphere of mad fun with funny zombies.
STIX is a fast-paced, multiplayer, top-down, arena shooter featuring 8-player online matches! Battle against friends or random players in Free-For-All, Zombie Invasion, King-of-the-hill, Team Deathmatch, and other modes!
Shoot and drift around the chaotic streets of Strife City, a hub for crime, secret societies, paranormal activities and lots’a *CHA-CHING*!
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