Games like SENTRY

Still thinking about SENTRY and its tense and replayable tone? You might settle into these games easily. Most of them work well for a shared session.

Space Beast Terror Fright
A very hard first-person roguelike where Marines board dark, Beast-infested ships to download DataCores, overload the reactor and run for the Airlock. One hit kills, every map is new, and co-op turns panic into a team sport.
Also in Co-op · Tense, Replayable, Fast-paced
91% of 1,261 Steam reviews are positivePlayers online now: 5$14.99
Rogue Star Rescue
Bullet Hell Insanity + Tower Defense Strategy. Rogue Star Rescue is a quirky new type of rogue-like shooter. Blast your way through diverse planets while rescuing your teammates and gathering traps for your defense strategy. Play solo or online to stop the Rogue Star before it annihilates everything!
Also in Co-op · Tense, Replayable, Colorful
91% of 122 Steam reviews are positive$7.49
RIPOUT
Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.
Also in Co-op · Tense, Replayable, Fast-paced
65% of 786 Steam reviews are positive$19.99
Outpost: Infinity Siege
Command a walking fortress that fights beside you. Loot ruined zones for parts, build up your outpost's guns, and hold the line when the machines come. First-person shooting, tower defense and base building in one loop, best with friends.
Also in Co-op · Tense, Replayable, Fast-paced
65% of 11,679 Steam reviews are positivePlayers online now: 55$24.99
Run Build Pew!
You’re being Bounty-Hunted! Run, Build your ship piece-by-piece and make it work with the parts you find, Destroy outposts and waves of fleets, and Pick your battles carefully to overcome your hunters in this Fast-Paced Top-Down Action Roguelite Shooter.
Tense, Replayable, Colorful
71% of 555 Steam reviews are positive$2.99
ENDLESS Dungeon™ - Definitive Edition
A roguelite blend of twin-stick shooting and tower defense on an abandoned space station. Escort a fragile crystal bot through monster-filled rooms, place turrets, and shoot your way to The Core. Die, reload in the Saloon, upgrade, and go again, solo or with two friends.
Also in Co-op · Tense, Replayable, Fast-paced
64% of 2,962 Steam reviews are positivePlayers online now: 14$14.99
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.
Also in Co-op · Tense, Replayable, Colorful
92% of 7,461 Steam reviews are positivePlayers online now: 36$2.99
IDUN - Frontline Survival
A single-player defense RTS where your turrets are not stuck where you built them. Drag them around mid-fight, call down orbital fire, and hold the line against thousands of alien bugs while miners, carts and nuclear trucks do their slow, vulnerable work.
Tense, Replayable, Fast-paced
76% of 702 Steam reviews are positivePlayers online now: 5$14.99
Entropy Survivors
A sharpshooting space frog rides a sword-swinging mech, and you steer both at once through swarms of aliens. Weapons fire bees, empty shotguns become projectiles, and every 20-minute run stacks upgrades into screen-filling chaos. Play solo or with up to three friends online.
Also in Co-op · Tense, Replayable, Colorful
79% of 496 Steam reviews are positivePlayers online now: 33$3.49
Kritter: Defend Together
Explore, loot, and rush back to defend your ship against alien hordes. Solo or 4-player coop, grow stronger run after run in this frantic action roguelite with a touch of tower defense.
Also in Co-op · Tense, Replayable, Colorful
86% of 112 Steam reviews are positive$9.99
Section 13
Unravel a thrilling sci-fi mystery in this action-packed twin-stick roguelite shooter. Select your load-out, stack up temporary and persistent upgrades, and delve into the depths of a subterranean base, either alone or in a group of up to 3 players.
Also in Co-op · Tense, Replayable, Fast-paced
71% of 773 Steam reviews are positivePlayers online now: 4$19.99
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.
Tense, Replayable, Colorful
64% of 352 Steam reviews are positive$14.99

Cheaper than SENTRY

Space Beast Terror Fright

Raid procedurally generated ghost ships with up to three friends, grab the data, blow the reactor and escape before it blows you.

$14.99

Rogue Star Rescue

Bullet Hell Insanity + Tower Defense Strategy. Rogue Star Rescue is a quirky new type of rogue-like shooter.

$7.49

ENDLESS Dungeon™ - Definitive Edition

Haul a fragile crystal through a hostile space station, holding each room with turrets and quick reflexes, alone or with two friends.

$14.99

Run Build Pew!

You’re being Bounty-Hunted! Run, Build your ship piece-by-piece and make it work with the parts you find, Destroy outposts and waves of fleets, and…

$2.99

Sanctum 2

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

$2.99

IDUN - Frontline Survival

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

$14.99

Entropy Survivors

Control a melee mech and its sharpshooting frog rider at the same time in a colorful bullet heaven roguelike.

$3.49

Kritter: Defend Together

Explore, loot, and rush back to defend your ship against alien hordes.

$9.99

Lumencraft

Mine glowing Lumen in a fully destructible underground, build your base, and shoot back when the swarms come.

$9.99

CRYPTARK

Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly…

$14.99

Siege of Centauri

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

$14.99

From Space

Rid a post-apocalyptic Earth of alien invaders with over-the-top weaponry, solo or with a squad of four.

$2.99

Hidden gems like SENTRY

Keep Her Safe

Scavenge guns, bolt them onto your base and hold off zombie hordes until the rocket flies.

$9.99

Starforged Legacy

Steer a salvaged starship through waves of enemies while your weapons fire on their own, building a new combination of upgrades every run.

$7.99

Desecrators

Desecrators is a retro six-degrees-of-freedom shooter set in a 41st-century galaxy where outlaw hovercraft pilots plunder deep-space installations.

$14.99

Utopia Must Fall

Steer a lone turret against endless waves, spend your daily upgrade wisely, and see how long your doomed city can hold out.

$5.39

Shape Shifter: Formations

Shape Shifter: Formations is an action twin-stick shooter with rogue-lite elements, where you must destroy hordes of geometric enemies alone or with…

$14.99

VOID/BREAKER

A fast, brutal roguelite shooter where every run lets you rebuild your guns and wreck the arena around you.

$17.99

Kritter: Defend Together

Explore, loot, and rush back to defend your ship against alien hordes.

$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.

$19.99

Battle Shapers

Blast corrupt robots in a bright cyberpunk city, steal Overlord Cores to reshape your build, and come back stronger after every run.

$24.99

Tower Dominion

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

$17.49

Entropy Survivors

Control a melee mech and its sharpshooting frog rider at the same time in a colorful bullet heaven roguelike.

$3.49

Space Beast Terror Fright

Raid procedurally generated ghost ships with up to three friends, grab the data, blow the reactor and escape before it blows you.

$14.99

Newest games like SENTRY