Top similar games like Ruinbound:

Tower defense where you fight as the hero. Draft roguelike skills every level, hold your lane through 21 waves of monsters and bosses, and send creeps to crush your rival's King. Six heroes and more to come, ranked PvP in 1v1, 2v2 and 4v4, and co-op against the AI.

Bulwark Tower Defense is a competitive team tower-defense: wall your lane with auto-fighting units to hold back the waves, then spend essence to send monsters that break your rivals' defenses. Grow your economy, upgrade a shared King, and outlast the enemy team across 1v1–4v4.

Build and defend a growing industrial colony on a hostile alien world. Mine resources, automate production lines, expand a massive factory, and protect your territory from relentless alien attacks in this top-down 3D strategy game.

Hold the gate in an online co-op action defense game for up to 4 players. Fight with swords, bows, and magic, charge on horseback, or launch yourself from a catapult. Buy weapons, hire mercenaries, and protect the princess when the gate falls!

Friendships are forged by beating something hard together. MOGA TD is a co-op tower defense for four: one shared board, one pool of lives, four races that cannot win alone — against four element armies, their kings and the Orc Warlord. Nobody holds the Gate alone.

The tower defense that thinks back: the swarm studies your defense, counters your main element and builds up resistance against it. Fight back with 6 elements, combo towers and support totems — solo, in co-op or versus for up to 4 players, in the ranked league or the Daily Challenge.

Cooperative bullet heaven roguelite game, playable in singleplayer or online multiplayer for up to four players. Experience co-op under the enemies' building pressure, or battle the hordes singlehandedly as a hero of your choice.

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.

Zon is a fast-paced bullet hell game for 1–6 players, playable solo or multiplayer in both co-op and PvP modes. Build, upgrade and defend your base while trying to take down the enemy. Battle other players, AI enemies, dodge bullets, and use powerful weapons to survive and win.

Compete at your pace in solo or fast-paced PvP tower defense while adapting to ever-changing paths. Survive infinite dimension loops, or defend alongside a friend in online co-op. Build powerful turret combinations, and climb a global ELO ladder.

Defend the Trutzburg from endless slime hordes. Build, upgrade and grow stronger with every run — solo or in 2-player online co-op.

Fight by yourself or with friends to survive a gauntlet of enemies in set stages. Collect items to empower your character and take down enemies quicker. Play as multiple different characters with varying play styles. Fight strong bosses that reward you handsomely with more money than normal enemies.

Deflect the ball launched by the boss, pass it to a friend, then smash it right back into the boss! The more you pass the ball, the faster it gets—and the fight descends into chaos. Hit the boss. Not your friends.

Crazy competitive top-down shooter in the multiverse of fairy tales and legends.

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.

Roguelite tower defense with moveable chaos. Build towers and troops, drag them mid battle, dash through danger, and defend your crystal solo or with up to three friends in online co op.

Co-op tower defense for up to four farmhands: torch hordes of thousands of rats and bowl them into a catfish's mouth. Defend the farm on foot, build towers mid-wave, sell the duds and link them into combos. Play solo, on the couch or online through Steam, then face four crowned kings.

Can you beat the best Maze TD for under 2 hours? Called Refund Me TD. Good luck.

Co-operative multiplayer game and complete code base available for free.

Create your hero and lead your troops on the battlefields of Bersia! Kingdom Under Fire 2 is an action-packed MMORPG/RTS hybrid. Choose one of five heroes, explore a fantasy world and hone your skills until you and your troops are ready for the epic-scale battles of this colossal war!

A survival game with roguelite elements where you build, fight, and explore the northern islands to reclaim what was lost.

Team up or go solo as tower defence strategy meets fast-paced action! Scavenge a wonderfully wrecked wasteland for scrap, build ridiculous death machines, and jump into the fight yourself to hold back increasingly deadly mutant hordes. Can you survive 'til dawn?

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!

Two trainee heroes, one ice cream-covered island, and a demon problem gone very, very wrong. Explore, fight, craft, and survive—or fade forever into The Ann-Onymity.

A card-driven tower defense: draft towers from your deck every wave, merge three copies to evolve them without limit and mix 14 elements to survive endless waves, crowned bosses and flyers. Play solo, co-op on one map, or side by side with up to 4 players.

Gather resources, upgrade your equipment, and strengthen your base with up to 4 players. When night falls, fend off waves of monsters and protect the precious Mana Stone from destruction.

Ancient TD is a co-op tower defense game inspired by ancient mythology. Build powerful towers, command unique peasants, collect runes, and face mythic foes. Obtain powerful artifacts from challenges and survive with up to 4 players.

Orcs Must Die! Unchained takes the award-winning Orcs Must Die! action tower defense game to a whole new level with team-based gameplay! Bust skulls with your best pals in PvE co-op Survival, or put your teamwork to the real test in Sabotage Mode!