Games like Sentinel

"MarZ: Tactical Base Defense" is a strategy game that challenges you to build a defense base and fight off zombie hordes on Mars. The game features a 20-mission story campaign, skirmish mode with customizable waves of enemies, and an intense "Outbreak" mode. Utilize powerful terraforming tools to create custom maps and share them via Steam Workshop, and research new upgrades for your towers. Recently updated with increased technology options and reworked balancing.

"DYSMANTLE" is an open-world, single-player or local co-op game with a dense atmosphere, interesting plot, and spectacular gameplay/graphics. You must escape a post-apocalyptic island by fighting creatures, breaking objects for materials, exploring, surviving, building outposts, crafting, hunting/taming animals, farming, and solving puzzles. The game is known for its humor, good music, and being very grinding.

Solareth is a single-player casual top-down arena shooter set in an immersive space battleground, featuring intense waves of increasingly challenging enemies. With over eight diverse weapons and a fantastic atmosphere, the game demands quick reflexes, sharp tactics, and offers a highly replayable experience despite some bugs and heavy grinding. Its intriguing story, amazing mechanics, and good music enhance the thrilling, blood-soaked action.

"140" is a single-player platformer game with a minimalistic yet striking art style and a melancholic electronic soundtrack. The rhythm-based gameplay, designed by Jeppe Carlsen, former lead gameplay designer at Playdead, demands both precise timing and quick reflexes to navigate through obstacles and progress through the levels. With its atmospheric setting and challenging gameplay, "140" is a unique and immersive experience for players.

"Worldless" is a single-player fantasy fighting game set in a newly formed universe, where entities are trapped in eternal conflict. With 2D turn-based platformer gameplay, players can explore interconnected areas, uncovering secrets and upgrading abilities while engaging in strategic combat against beings that aim to stop them. The game boasts splendid visuals, an intriguing story, and excellent music, making for a very atmospheric experience.

PixelJunk™ Monsters Ultimate is a tower defense game where players protect Tikiman and his tribe from enemy hordes. This ultimate edition includes all content from the original game, as well as extra levels, tower types, and enemies. The goal is to strategically place and upgrade towers to stop the waves of colorful critters.

Steampunk Tower 2 is a free tower defense game set in an alternate universe during a prolonged world war. As a skilled commander, you control a secret base and enormous aircraft carrier with a Battle Tower and team of specialists. The game features dynamic battles, stronger enemies with weak spots, super weapons, and massive bosses, with a giant map of Europe to explore.

"Protolife is a single-player Real Time Strategy game with a good plot and marvelous visuals. Players become a part of a cellular machinery, building defenses and upgrading towers using proteins and enzymes to protect the cell from infection. The game features keyboard controls, a manual for building and upgrading, and a team of developers including Alexey Grishin for code, music, and pirogi; Ruslan Kibets for code and PR; and Anatoly Sazanov for art and idea."

"Dungeon Warfare" is a challenging tower defense game where players build complex maze-like dungeons to defend against hordes of heroes. Use a variety of traps and towers to strategically defeat waves of adventurers and upgrade your arsenal to unlock new tactics. The game features a deep upgrade system and numerous enemies, providing hours of challenging defense gameplay. No information available on the release date or the developer and publisher of "Dungeon Warfare."

Space Run is a real-time spaceship construction strategy game, where you must protect your cargo ship from asteroids, pirates, and competing transporters. As you complete missions and earn credits, unlock new modules and upgrades such as laser turrets and missile launchers to help you survive in the dangerous depths of space. Your goal is to safely transport valuable shipments while fending off threats and avoiding damage to your cargo.