Games like Sentinels

Want something that feels replayable and tense the way Sentinels does? These games keep things close enough to feel familiar.

Sentinel 3: Homeworld
The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses! * An epic campaign across 20 levels.
Replayable
81% of 142 Steam reviews are positivePlayers online now: 1$5.99
Sanctum 2
Build a maze, then grab a gun and defend it yourself. Sanctum 2 mixes tower defense with first-person shooting: you design the defenses, then blast the aliens that slip through. Four classes, perks, Feats of Strength and four-player co-op on the planet LOEK III.
Replayable, Tense, Fast-paced
92% of 7,461 Steam reviews are positivePlayers online now: 36$14.99
SENTRY
SENTRY is a first-person shooter crossed with tower defense: aliens board your fleeing spaceship and you stop them with guns, traps, turrets and the occasional well-aimed shot that vents them into space. Fast, tense and colorful, with a campaign where every defeat reshapes the war for your ship.
Replayable, Tense, Fast-paced
82% of 866 Steam reviews are positivePlayers online now: 15$15.99
Artificial Extinction 2
A Tower Defense hybrid where survival depends on strategy and firepower. Build turrets, mine resources, and hold the line against relentless AI swarms. Switch instantly between commanding the battlefield in RTS view or fighting on the ground in FPS combat.
Replayable, Tense, Fast-paced
77% of 121 Steam reviews are positive$13.99
DOTFI
Do you have what it takes to defend what is yours? This is not a typical tower defense game where the troops do all the work. This is a hybrid FPS/TPS tower defense game which you take over the control to defend your island.
Replayable, Tense, Fast-paced
59% of 46 Steam reviews are positive$1.99
Siege of Centauri
Defend against thousands of enemies in this explosive tower defense game. Deploy upgradable towers and unleash powerful orbital abilities as you try to protect Earth's first colony world from destruction.
Replayable, Tense, Fast-paced
64% of 352 Steam reviews are positive$14.99
Defense Grid: The Awakening
Aliens are after your power cores, and only towers stand in their way. Defense Grid is tower defense done with real depth: ten tower types, mazes you build yourself, an economy that rewards patience, and levels you can solve a dozen different ways. Easy to start, hard to master, very hard to put down.
Replayable, Tense
96% of 4,547 Steam reviews are positivePlayers online now: 62$9.99
No Creeps Were Harmed TD
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!
Replayable, Tense, Fast-paced
89% of 473 Steam reviews are positive$19.99
Zombie Defense
A hybrid of real-time strategy and tower defense against the walking dead. Recruit soldiers, slot them into positions, and let them hold the line while you throw grenades, call airstrikes and shuffle men between posts. 49 missions, 22 recruit types, 150 permanent upgrades, and enough zombies to make you question the odds.
Replayable, Tense, Fast-paced
84% of 2,180 Steam reviews are positivePlayers online now: 20Free
Colony Siege
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.
Replayable, Tense, Fast-paced
91% of 199 Steam reviews are positive$19.99
Revenge of the Titans
The ultimate mash-up of Real-time Strategy and Tower Defense!
Replayable, Tense, Fast-paced
81% of 665 Steam reviews are positivePlayers online now: 3$14.99
GROSS
GROSS is a unique twist on the classic tower defense genre. After building your defenses, you will jump into the action to take on enemies head-on. Make sure to collect as much cash as possible to upgrade your defenses and stay ahead of the game. Can you outlast the waves of enemies?
Replayable, Tense, Fast-paced
78% of 275 Steam reviews are positive$1.29

Cheaper than Sentinels

Sentinel 3: Homeworld

The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!

$5.99

Sentinel 4: Dark Star

Want a tactical and strategic tower defense challenge that's packed with options and upgrades?

$6.99

Sanctum 2

Design your defenses, then fight alongside them in first person on a bright, chaotic alien world.

$14.99

Sanctum

Waves of aliens, tight defenses and four-player co-op make every round a frantic, colorful scramble.

$9.99

SENTRY

Defend your spaceship from alien boarders with guns, traps and blast doors while plotting your escape through hostile space.

$15.99

Artificial Extinction 2

A Tower Defense hybrid where survival depends on strategy and firepower.

$13.99

DOTFI

Do you have what it takes to defend what is yours? This is not a typical tower defense game where the troops do all the work.

$1.99

Siege of Centauri

Defend against thousands of enemies in this explosive tower defense game.

$14.99

Defense Grid: The Awakening

Place towers, shape the path and hold the line against waves of alien thieves in a colorful sci-fi strategy game.

$9.99

Revenge of the Titans

The ultimate mash-up of Real-time Strategy and Tower Defense!

$14.99

GROSS

GROSS is a unique twist on the classic tower defense genre. After building your defenses, you will jump into the action to take on enemies head-on.

$1.29

Neural Shock

Control your Hero to aid your Turrets and Traps in battle in this grim, dark Tower Defense & Action RPG with a scifi-grindhouse aesthetic.

$5.99

Hidden gems like Sentinels

No Creeps Were Harmed TD

Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm.

$19.99

Repel The Rifts

Defend your mining camp against waves of alien creatures, drafting new towers and upgrades each turn-based night.

$9.74

Axon TD: Uprising - Tower Defense

Stretch enemy paths with tiles, set up 40 towers and hold off waves of robots in runs, a campaign or matches with friends.

$19.99

Artificial Extinction 2

A Tower Defense hybrid where survival depends on strategy and firepower.

$13.99

Tower Dominion

Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.

$17.49

SENTRY

Defend your spaceship from alien boarders with guns, traps and blast doors while plotting your escape through hostile space.

$15.99

IDUN - Frontline Survival

A single-player defense RTS where your turrets are not stuck where you built them.

$14.99

2112TD: Tower Defense Survival

Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi…

$4.79

Northend Tower Defense

Build a defense from soldiers, vehicles and traps, then survive the waves in real time.

$7.99

GROSS

GROSS is a unique twist on the classic tower defense genre. After building your defenses, you will jump into the action to take on enemies head-on.

$1.29

Colony Siege

Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics.

$19.99

Towerful Defense: A Rogue TD

A roguelike tower defense where you control a single tower to fight against hordes of aliens coming from all directions.

$9.99

Games like Sentinels

Cheaper than Sentinels

Hidden gems like Sentinels

Newest games like Sentinels