Massive Defense
Place the towers on the fragile energy rings. Manage your army, use resources wisely, and upgrade towers and special weapons. Welcome to an atmospheric world full of surprises and long adventures.

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Experience a classic 2-Player card game based on 9 Hole Golf in an immersive fantasy setting. Play locally against your friends, take on the Adventure mode with Roguelte rules that turn gameplay completely upside down, or jump online to challenge players from around the world.
Platforms
macOS · Linux · Windows
Developer
Publisher
Last sync
October 5, 2026
Experience a classic 2-Player card game based on 9 Hole Golf in an immersive fantasy setting. Play locally against your friends, take on the Adventure mode with Roguelte rules that turn gameplay completely upside down, or jump online to challenge players from around the world with cross-platform multiplayer.
Let the calming music and environments soothe you as you explore various challenges set in tranquil forests, gentle beaches, and sunny clearings. Nine Card Isle is easy to learn for players of all ages. Take your winnings from matches to unlock card backs, characters, music tracks, and boards to customize the way you play both online and offline. Multiple profiles can be saved locally, allowing up to 4 players to save their progress and stats across all modes for bragging rights. Local multiplayer supports a variety of control schemes, so you're ready to go at any time!