Survive as a last human survivor against space monsters. Fight undead enemies to protect remaining humans. Escape dangerous environments and complete rescue missions. Use weapons and abilities to defeat enemies and rebuild Earth.
Solve puzzles by arranging colored blocks to complete images. Drag and drop pieces to fit them together. Track progress and unlock new puzzles. Share completed puzzles with friends.
Manage resources to and expand an empire. Construct buildings, train units, and fortify defenses. Complete levels with strategic planning. Trade goods, manage economy, and enemy territories. Track progress through campaign missions.
