Games like Gemstone Defense

"Rogue Tower" is a rogue-lite tower defense game where players must build and defend their tower against enemy waves, with each playthrough offering unique challenges and permanent upgrades. Use a variety of tower types and special abilities to survive as long as possible, while managing resources and adapting to changing conditions. With procedural generation and permadeath, each run is a new test of your strategic skills.

"Core Defense" is a strategic tower defense game where you protect your core from enemies using a variety of towers and abilities. Continuous upgrades and tech tree research enhance your defensive capabilities. With procedurally generated levels and a challenging difficulty curve, each playthrough offers a unique and engaging experience.

"Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization, and replayability. Carefully plan your maze and build advanced structures to defend against alien hordes, using active abilities to tilt the battlefield in your favor. Level up and gain access to Perks, allowing you to specialize your strategies and master the game on all difficulties."

"Tower Wars is a multiplayer tower defense game with elements of real-time strategy. Construct unique towers and mazes, and upgrade an array of specialized units to defend against enemy attacks in 1v1, 2v2, or 3v3 matches. The game's charming old-world style adds to the humor and fun of this competitive experience."

"Rock 'N' Roll Defense" is a challenging tower defense game where you must protect rock concerts from various minions threatening to end the party. Choose your band, place and upgrade speakers, and employ strategies across 40 stages with 20 enemy types, including four bosses. The game features a rocking soundtrack with 10 music tracks from amazing artists, which can be downloaded for free.

Anomaly 2 is a real-time strategy game where players lead a military convoy through a post-apocalyptic world overrun by alien machines. The game features tower offense mechanics, allowing players to tactically plan their path and manage their units to complete objectives. A multiplayer mode is also included, where players can take control of the alien faction for strategic battles against human forces.

"Tactical War: Tower Defense" is a challenging tower defense game that tests your strategic skills. Protect your base with 5 types of upgradable towers, using special abilities like teleport and mine to aid you in difficult situations. With 20 balanced levels and the ability to destroy landscape objects to place more towers, this game offers a unique twist on classic tower defense gameplay.

Sanctum is a sensational hybrid of first-person shooter and tower defense, blending intense combat with strategic building and maze creation. Featuring exceptional graphics, phenomenal music, and 4-player co-op, it offers hilarious moments, lots of grinding, and fantastic replayability across multiple challenging modes. Dive into this unique experience and customize your defense with five imaginative weapons.

"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."

"2112TD: Tower Defense Survival" is a futuristic tower defense game with strategic base building elements. Defend your refinery from alien invaders across procedurally generated levels with a variety of turrets and special abilities. Upgrade and customize your arsenal to survive increasingly challenging waves in this intense, sci-fi tower defense experience.