Games like Project Hastur

"Revenge of the Titans" is a real-time strategy and tower defense game where you must defend Earth's bases from relentless Titan attacks across the solar system. Assemble defensive positions with turrets, droids, barricades, and mines, while managing funds by mining nearby resources. The game features a 50-level campaign, endless and survival modes, and numerous buildings and technologies to research.

"Sentinel 3: Homeworld" is a sci-fi tower defense game with an epic campaign across 20 levels and over 20 unlockable weapons. A powerful commander unit can level up and gain new abilities, and customization of weapon loadouts is encouraged. Endless modes, Steam achievements, and exclusive music by Specimen A are also included.

In "Infested Planet" , you command a small squad of soldiers against an overwhelming alien force, using strategy and tactical thinking to outmaneuver and outsmart the enemy. With 100,000 aliens closing in, you'll need to build defenses, equip your team with advanced weapons, and launch surprise attacks to capture and destroy alien hives. The ever-mutating alien army keeps you on your toes, demanding constant adaptation and innovation to survive.

"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.

In "Anomaly: Warzone Earth," players command a military convoy through a hostile alien-infested city. Instead of a traditional tower defense game, this is a reverse-tower-defense title, where players strategically plan routes and manage units to complete objectives. The game features real-world locations, a compelling story, and tactical combat against unique enemy types.

In Siege of Centauri, you assume the role of protector for Earth's first interstellar colony, located in the Proxima Centauri system. Faced with a ruthless alien invasion, you must strategically deploy defense structures and utilize orbital abilities to repel the attackers. With a variety of customization options, adjustable difficulty, and multiple game modes, this real-time strategy game offers an engaging and immersive experience within the Ashes of the Singularity universe.

Defender's Quest: Valley of the Forgotten is a strategic tower defense game with RPG elements. You command a party of characters with unique abilities to defend against hordes of monsters attacking from all sides. The game features a detailed story, challenging levels, and a variety of upgrades to customize your characters' abilities. Gameplay involves strategic positioning and timely use of character skills to survive increasingly difficult waves of enemies.

"Symphony of War: The Nephilim Saga" is a turn-based strategy game with RPG elements, where players lead a faction in a fantasy world engulfed in war. Recruit and manage a diverse army, engage in strategic battles, and make decisions that will shape the world's future. The game features dynamic events, skill trees, and a complex narrative with multiple endings.

"Unstoppable Gorg" is a unique tower defense game that pays homage to classic Sci-Fi films. Players must strategically place and upgrade towers to defend against incoming alien forces on rotating planets. The game features a satisfying blend of strategic planning and frantic action, with a distinctive tongue-in-cheek retro style that sets it apart from other games in the genre.

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.