Games like Castle Defense Online - 4p

"Idle Kingdom Defense" is a strategy game with awesome mechanics, amazing visuals, and a perfect soundtrack. As a medieval hero, command large-scale battles to protect your kingdom, but be prepared for lots of grinding and occasional interruptions from ads. Despite these minor drawbacks, the game provides plenty of laughs and entertainment.

In Magical Runes, three ruthless kings wage war to conquer your lands, but ancient magic offers a last line of defense. Command mystical artifacts that automatically strike enemies, gather magic crystals to upgrade spells, and strategically decide whether to boost defenses, empower your assistant, or unlock new arcane powers to survive the relentless invasion.

Hellsquad Rrrush! is a single-player role-playing game that combines defense, luck, and strategy to help restore order in hell. Featuring ingenious graphics and awesome game mechanics, it offers a challenging experience with extensive grinding. However, the gameplay is frequently interrupted by too many ads.

Strategy meets action in the ultimate TD game.

Wild Sky: Tower Defense TD is a strategy game with an ingenious story and wonderful gameplay, featuring good visuals and humor-filled moments. Despite some bugs, the game offers intense tower defense action where you build towers to protect the kingdom from creeps. However, be prepared for lots of grinding to progress. The game's description states that it challenges you to build towers to defend against a rush of creeps in this tower defense.

"CatnRobot Idle TD: Battle Cat" is a strategy game with spectacular mechanics and wonderful visuals. Build and grow your cat army, and construct a robot to defend your kingdom in this battle of cats. Despite the grinding and annoying ads, the game offers plenty of humor to keep players engaged.

ReignMaker is a single-player historical role-playing game that combines match-3, tower defense, city building, and political strategy elements. Over 8 hours, players lead their kingdom against the Void Army, using match-3 and tower defense skills, as well as political decisions, to access more powerful spells, troops, and gear. With 50 towers, 20 spells, 10 troops, 12 implements of war, and millions of story possibilities, ReignMaker offers deep strategy and cultural customization.

"Wild Castle: Tower Defense TD" is a strategy game where players build and defend their castle against endless waves of monsters. With over 60 hero classes, 20 treasures, and 10,000 waves to defend from, players must upgrade their castle and troops to survive. The game allows for idle progression and has a leaderboard for players to compete against each other. As players progress, they can unlock new heroes and build the ultimate fortress.

A survivor-like bullet heaven with online co-op up to 3 players

"Dungeon Survivors" is a top-down roguelite where you can choose between 5 classes and use abilities to fight off fantasy monsters in 1-4 player co-op. Every 25 waves, brace for boss battles with unique mechanics. After each wave, choose from hundreds of cards as rewards, which include items, abilities, stat increases, and more, with different rarities. Game features quick runs and a variety of items, weapons, and abilities to choose from.