Top similar games like SENTRY:

Autothysis is a first-person tower defense game where strategy meets precision. Deploy turrets, manage resources, and fight swarms of insectoid enemies. Target weak points to shatter foes while upgrading defenses to survive escalating waves. Can you withstand the oncoming horde?

Protect your crystal at all costs! Build your defense line, upgrade your abilities, and fight against endless waves of enemies in this fast-paced survival game that blends fluid FPS action, tower defense strategy, and roguelike mechanics.

Kuiper belt survivor is an arcade style bullet heaven, where every run is endless. It brings a unique spin to the bullet heaven genre by making every part of the players weapon arsenal customizable with well over 10,000 unique weapons to build, and unique stats for every enemy.

Year 2425, humanity colonized the exoplanet named SACH-041840. But then, in the 55th year "they" came; No one knows who or what controls them, but what is known is that if they reach the colony proper, it will be annihilated. It is up to you to bring the WRECKONING upon them!

Force Reboot is a fast-paced FPS with rogue-lite elements. Force Reboot is entirely focused on nonstop gameplay. You need to get past all of the rooms as fast as you can.

Deep Nest is a fast-paced single player action shooter roguelite where you play a space marine fighting off an endless horde of alien monsters in an infested facility.

Tower Tactics Arena is a fast-paced action roguelite set in the Tower Tactics: Liberation universe. Battle relentless enemy waves in a closed combat arena, level up your towers strategically, and gather powerful trinkets and potions! Will you claim victory in the arena?

Rise of Mutant Swarms is a strategy survival tower-defense game where you defend the base against waves of evolving mutant enemies. Place and upgrade turrets, adapt to enemy abilities, and make critical decisions as the pressure rises with every wave.

Eternal Challenger is a roguelite boomer shooter which aims to create retro style combat experiences and visuals with modern systems which randomize and create content.

A fast-paced first-person shooter where you master gun recoil to leap across platforms, battle various enemies, and upgrade your weapon to escape an overrun space station.

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

Cluckmech Oasis, a top-down shooting Roguelike tower defense game. Play as the Warcluck and lead your team of animal heroes in a fight for survival. Collect, build and upgrade defenses, and engage in intense battle against waves of plant enemies.

Operation Excision is a retro styled first person shooter with visuals inspired by 1980’s vector graphic arcade games, and a setting and story influenced by 1970’s and 1980’s science-fiction movies, books, and comics.

Directive Nine is a VR FPS Roguelite in a sci fi setting. "How is the Galactic Federation ever going to expand with these pesky settlers in the Outer Reaches? Get out there and deal with it for us. You know what I mean. You know. It's... I'm talking about destroying them. Like, dead dead."

RussianPunk 2007 is a dynamic FPS shooter where death is not the end, but a chance to grow stronger. Fight enemies, unlock abilities through memory cells, and collect artifacts to save the world.

Defend the furnace from waves of goblins by building and upgrading in an FPS tower defense.

Survive in a ruined Biosphere on a hostile alien world. Endure, then harness the extreme weather, battle powerful bosses for upgrades, and uncover the mystery behind the planet’s lost atmosphere.

Space bounty hunter Falco must explore the solar system in search of his ex-girlfriend and destroy the Black Star cult. Collect bounties, upgrade your equipment, explore planets, crack wise & fight aliens in this GZDoom-powered Retro-FPS adventure.

Our ship has suffered an unknown disaster and has been forced to dock on the side of this planet, and all you have to do is lead us to repair the ship and continue its voyage, however, the danger is getting closer and closer without our knowledge......

Adapt to the four rapidly changing seasons, build up your farm during the day, by night you will fight endless hordes of ghosts that want to haunt your home. A round based FPS with tower defense, roguelike, and farming elements. How many nights will you survive?

Roboholic is a thrilling Rogue-Lite FPS about robots and beer. Fast-paced gameplay inspired by Doom, with visuals akin to Borderlands. Wield powerful alco-guns, unleash unique abilities, and use the destructible environment to turn enemies into scrap. Bring the ultimate beer apocalypse to life!

Bullets and Mods is a fast-paced FPS with Roguelite mechanics. Collect bullets to build your magazine, equip mods to enhance your gun, and unleash your fury on your enemies!

A tower defence you fight in first person. One road, one base, and thirty kinds of enemies walking down it. You meet them yourself with six guns and and build different kinds of defensive turrets.

Fusion of Vampire Survivors Like and Tower Defense! Survive with Towers against waves of enemies. Build towers by day, survive endless enemy waves by night. Expand your territory, gain experience, and grow stronger with each battle. How long can you survive?

Control a Nanite body from a space station to gather Nanite resources on Earth, seized by a rogue AI. Build and fortify your dropbase with turrets and defenses, fight waves of robotic enemies, and collect Nanites for extraction, balancing fast FPS combat with strategic tower placement.

A sandbox survival game set in a universe full of procedurally generated worlds to explore and conquer!

"Siege of Shadows" is an intense tower defense survival game where strategy, skill, and quick thinking are your keys to victory. In a world overrun by relentless waves of enemies, your mission is to build, upgrade, and defend your base at all costs.

INTERGALACTICORP. is a sci-fi rogue-lite tower defense game where you take on the role of an operator-bot, charged with conducting an intergalactic mining operation. Will you thrive as an efficient miner in this alien environment, or succumb to the dangers that lurk in the depths of space?

Zero Hour Deadfront is a co-op first-person zombie shooter where squads draft rarity-based upgrade cards between waves, scavenge a shifting arsenal, and gamble a single last-breath coin toss to revive their fallen team.

Blood House ULTRA is a roguelite FPS with an emphasis on dynamic play and beautiful graphics. In the game, you will have to fight hordes of aliens besieging your home and collect items that give you unique abilities

Protect Gloobi is a strategic, space-themed FPS with a weird and offbeat vibe, where you split your focus between shredding your foes to pieces and replenishing your ammo by playing the game on your phone, during your challenging battles across the galaxy!

Eden Star is a fast paced Sci-Fi survival game that blends unique physics based combat, destructible environments and free-form construction with the exploration of a hostile alien world.

OVERHEAT PROTOCOL is a fast-paced arena FPS with roguelite upgrades. Fight escalating waves of hostile machines, shape your rifle with every level, combine Lightning, Explosion, and Shatter effects, and survive until the arena finally overwhelms you.