Iron Brigade 是 Double Fine Productions 推出的塔防射击游戏。你驾驶机甲，一边移动射击，一边部署固定防御工事，两者结合来抵挡 Monovision 的进攻。战线推进到欧洲、非洲和太平洋，之后还有 Iron Brigade: Rise of the Martian Bear 的火星战役，面对 Vlad 的新 Monovision Constructs，包含 4 个防御任务、2 个生存任务和 1 个 Boss 任务，可解锁 80 多件新战利品。
游戏支持在线合作，你可以和全球的队友并肩作战。每人负责自己的机甲和防御布局，移动火力与固定防线互相配合，扛住一波波敌人。战利品和装备是各自搭配的，队伍里分工不同，火力覆盖和防守节奏会差很多。
机甲的装备组合有数千种可能，先想清楚自己打什么位置：是冲在前面输出，还是稳住阵地布防。防御工事一旦摆下就固定了，位置选错会很难补救。Rise of the Martian Bear 是主线打完欧洲、非洲和太平洋之后的内容，新任务和新战利品都在那边。
Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.
Bish Bash Bots is a unique mix of casual tower defense strategy and all-out brawling action. Team up in couch co-op / online play or go it alone and fight to save the world by building upgradable turrets, unlocking gadgets and bashing bots with giant hammers.
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
《Sanctum 2》把塔防建造与第一人称射击结合起来，支持最多四人在线合作战役。你和朋友要守护产氧核心，布置角色装备，并可在完成战役后继续挑战生存模式。