Top similar games like DOI: Defense Shooter:

Food Fight! Fight with food! Collect food items and combine them into weapons and armor for the most delicious battle yet!

Experience the unique mix of modern fast-paced multiplayer action with intuitive twin-stick controls and a retro pixelart look. Battle against other pilots in quick PvP sessions of classic versus and space racing - or team up with friends in Co-op to defend against aliens and hunt difficult bosses.

Choose a turret and a body to make your own tank to shoot, blast, and burn friends to claim your victory! Play classic game modes like Free for All, Team Death Match, Capture the Flag, and King of the Hill on your own custom-made maps in Silly Tanks.

Myrkwood: Offshoot is a top-down survival defense game that you can play with friends! Defend the Gem as you fight through waves of enemies!

A top-down shooter with tanks that have various assorted abilities, with support for multiplayer and a level editor.

The Great Sweet Battle Begins! "CandyPop" is a confectionery war set in the Land of Sweets! A top-down, all-direction chaotic battle shooting action game! Are you ready?

Destroy arena vermin, level up, choose your class path, get loot, and slay other players. Destroy the bosses of the arena without being slain, and perhaps your ascent into arena God-hood will be recorded into legend! Now remastered!

Poly-Vinyl Pests! takes place many years in the future, where humans are long gone but plastics still litter the earth. Play as two ants from rival colonies in this twin-stick shooter to both squash plastic-laden pests and to prove the superiority of your colony!

A 2-6 player online party shooter! Capsule dudes, rarity-tiered weapons, dual-wield affixes — and a big red button that drops from the sky. Press it for a 666-point jackpot… or a nuke. Don't press that button. (You will.)

Survive as long as you can in an endless bullet hell with randomized stats and weapons.

"Angles of Death" is an action RPG and roguelike game. It blends the intensity of real-time combat and the unpredictability of roguelike mechanics. The pixel art aesthetic adds a nostalgic yet modern visual appeal, while the atmospheric soundtrack immerses players in a dark and captivating world.

Join players from around the world in a gauntlet of challenges you and your bow must overcome. Bow climb is a social climbing game. It'll take time but you'll be able to do it!

A top down, twin stick shooter inspired by classic retro arcade games with loads of enemies, fast paced bullet hell combat, big boss battles and tons of bullets.

Galactic Wars EX is a pixel perfect co-op retro arcade shmup retrogaming experience for modern pcs

Chaotic third-person multiplayer shooter where adorable animals battle in TDM, FFA, Capture the Egg, Stack Off, Gun Soccer, and Basketball, or fight off waves of zombies in single-player mode.

’Save Me, My Hero’ is a defense game with roguelike elements.Complete your own battle style with the hero's various skills and special abilities.

Tankle is an amazing action packed multiplayer or singleplayer top down shooter, you have to dodge bullets and defeat enemies to progress and grow stronger!

Antarctic Showdown is a 1v1 shooting roguelite where you build and strengthen yourself with every defeat. Kill your friend and claim victory!

Defend your crown at all costs.

Astrotoons is a party-shooter offering both co-op and PvP modes up to four players. Cooperate with friends to complete missions and escape, or compete against each other in exciting PvP matches.

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*

HELLFRONT is an intense top-down shooter. Conquer ground, build a base, and command your troops in battle! Play PvP or beat the campaign co-op or solo.

Ripper is a top-down shooter with fully destructible environments, fog of war, and Steam multiplayer. Break through walls, survive enemy waves, and battle your friends.

Pixel Breach is a competitive 2D top-down pixel shooter built around tense bomb-defusal rounds. Manage your economy and loadout, use smoke, sound, and shared sightlines to gather information, and coordinate with your team to plant or defuse the bomb.

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.

No lanes. No safe paths. Build fast or fall. Fight and adapt in real time as enemies attack from every direction. Control your hero, place towers on the fly, and shape the battlefield in this intense 1–4 player tower defense.

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. *

Roguevive is an roguelite survive bullet heaven. Survive against hordes of enemies getting ever stronger. Level up, unlock upgrades and new guns in this multiplayer action roguelite.

Xeno Crisis is an arena shooter in which up to two players take control of battle-hardened marines embarking on a deadly mission to confront an alien menace! Run and gun your way through thousands of adversaries, searching for survivors, and ultimately facing the origin of the outpost's demise.

HELLDIVERS™ is a hardcore, cooperative, twin stick shooter. As part of the elite unit called the HELLDIVERS, players must work together to protect SUPER EARTH and defeat the enemies of mankind in an intense intergalactic war.