# Game Systems

- [Alien Invasions](/game-systems/alien-invasions.md)
- [Asset Rarities](/game-systems/asset-rarities.md)
- [Combat](/game-systems/combat.md)
- [Aliens](/game-systems/combat/aliens.md): They never come alone
- [Combat Basics](/game-systems/combat/combat-basics.md)
- [CPU Capacity](/game-systems/cpu-capacity.md)
- [Dungeons](/game-systems/dungeons.md)
- [Power Supply](/game-systems/power-supply.md)
- [Resources](/game-systems/resources.md): Used to create and upgrade everything
- [Leaderboards](/game-systems/leaderboards.md): Pave Your Way to Glory!
- [Shortcuts and Interactions](/game-systems/shortcuts-and-interactions.md): Anything that might be useful