Top similar games like SHOOTOSYNTHESIS:

Alien 911 is a hybrid 3rd-person shooter tower defense game that you can play solo or multiplayer. Aliens in distress from around the universe call Alien-911 for help when they're being attacked. Fans of Orcs Must Die, Sanctum, Dungeon Defenders, we invite you to try our twist on the genre.

Defend your world as sentient Props in Puropu Defense Squad! Build, upgrade, and evolve your heroes to crush waves of filthy humans worldwide. Dive into a unique mix of third-person action and tower defense—solo or with friends—in an endlessly replayable co-op campaign!

Discover your breath as you shoot your way through a whimsical madness! Slash and dash in a dynamic dance against hordes of enemies and bosses! Accept your losses, and bring a friend, it's time to go again...

A 1-4 player co-op roguelite FPS. Four Guardians from different mythologies cross the realms that Oblivion is erasing, with guns, lightning, daggers and hummingbirds. Stack blessings from the gods every run until a single shot sets off a chain reaction.

A cooperative action tower defense and third-person shooter where vision is mutually exclusive. Place towers to shine light on the endless horde of bugs, or use augmented vision to fight alongside defenses. Equip powerful modules that unleash your strategy's true potential!

A first-person tower defense game on floating islands above the planets. Build towers, fight with your own weapons and glide the gaps on a propeller to stop the balloons carrying a blight to the planet below. Solo, split screen or online, for up to four.

Take part of history’s greatest battle of Green VS. Tan. Fight amongst and against others online. Jump, shoot and roll your way into victory with fast paced objective based gameplay. Sometimes the greatest battles are fought by the smallest of soldiers.

Starcore is a free-to-play voxel fortress-defense roguelite. Build, mine, research, and fight escalating swarms solo or in four-player co-op. Wage team battles in Corenet, or create and share custom scenarios through Steam Workshop.

Third-person bullet heaven meets explosive co-op action! Swing, dash, and blast through monster swarms while combining upgrades and discovering rare evolutions to create game-breaking builds of destruction.

Engage in fierce battles alongside animals roaming the universe. Face dungeons filled with bullets, cute yet powerful animals, and over 50 weapons! Team up with friends to conquer this Rogue-lite shooter.

A 1-4 player physics based fishing simulator. While drinking and boating you suddenly crash into a small island. To work your way back home you have to learn How to Fish.

A co-op Bullet Heaven Roguelite FPS for 1-4 players. Team up as heavily armed nuts and hold the arena against endless waves of hungry forest animals. Choose from 9 Vengers, combine 90+ upgrades into a new build every run, and find out how long your squad can survive.

Hunt fish solo or in co-op. Haul them in and take them down with crazy guns. Try out different baits and rods, explore unique locations, and complete your fish collection in the atlas. Or just kick back by the campfire with friends in this wild webfishing adventure 🎣 🐟 💥

A base-building action roguelite where the swarm never lets up. Drop into new terrain every run. Gather resources, build your defenses, draft upgrades mid-run, and fight alongside your base to hold the line. Solo or up to 4-player co-op.

Slice, burn, toss, zap, grind and gib massive hordes of repugnant orcs in this long-awaited successor to the award-winning Orcs Must Die! series.

In Furry Defenders, where the Demon Clan covets the Dragon Veins and incites war among all races, you will play as Cynton, the Dragon Bloodline Warrior. Rally your allies and set masterful traps at crucial passes to outsmart the looming threat of the Demon Army.

You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.

Orcs Must Die! Deathtrap combines chaotic third-person combat with devious trap-laying strategy. Enjoy endless replayability as your War Mage grows stronger through roguelite progression. Repel relentless orc hordes solo or with up to 4 players.

Protect the Holy Cow in a chaotic third-person roguelite defense shooter. Play solo or online co-op, build absurd heroes, smash through enemy waves, survive boss attacks, and push into fantasy maps that only get more ridiculous.

A tower defense roguelite where every run deals you a different hand. Build towers, upgrade your hero with random card draws, and hold the line against waves of monsters. Play solo or in online co-op with friends.

A pirate-themed tower defense roguelite where players build their crew to take on the Skully Seas, liberating islands, finding helpful treasures, and encountering new pirates to add to the adventure along the way!

They keep coming from both sides, and one lone Tower stands in their way. Team up with up to 3 friends in this pixel-art co-op survival shooter: pool your Gold to build the Tower, grow your own hero with every kill, and hold out through 70 waves and 7 bosses. Then go Endless.

You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.

Warden’s Will is a fast-paced movement-based roguelite shooter you can enjoy solo or up to 3 friends. Pick your Warden, try out different builds, and jump into chaotic arenas filled with unpredictable robots. The game challenges you to move smart and react quickly and try new builds with every run.

Build towers, defend two sectors and your shared reactor against endless machine waves—alone or in online co-op. Every battle matters: In THE GREAT WAR, the global frontline shaped by all players grants unique bonuses and penalties in every match.

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

Spellers is a 2v2 game where you fight to capture the zone and claim victory. Cast Spells by typing their names on your keyboard : speed and accuracy are key ! Master over 15 Spells, customize your wizard, and dominate the zone.

Grab your hammers and start to craft in this co-op Tavern Defense for one to four players. As a team of Dwarves, you must gather supplies and build towers to protect your beloved brewery. Learn to cooperate to achieve victory in this chaotic multiplayer game!

Zero Hour is a tactical FPS with online team-based game play that takes place in a variety of fictional locations interpreted in Bangladesh with Real-life scale & resource management. It brings a grounded, close quarter combat experience to the game.

Race solo against the clock or challenge your friends, dodging traps and defeating minions to retrieve the Sweet Star from the Evil Candy King. Join forces or face off in up to 8 teams of 1–3 players on a procedurally generated map where every match is a brand-new, chaotic adventure.

Build your defenses. Choose your class. Hold the Core. FortFall is a third-person fantasy defense game for solo play or private online co-op with up to five players. Raise walls, repair the damage, and fight escalating waves with melee weapons, bows, spells, and sentries.