Tower Lab Campaign, Endless, Puzzle, Arcade, and Sandbox Modes
Use Campaign for the three-region roguelite deckbuilding progression, standard Arcade for classic tower defense, Endless for a procedurally expanding survival run, Puzzle for optimization challenges, and Sandbox/Level Editor for building and sharing
Quick Answer
Use Campaign for the three-region roguelite deckbuilding progression, standard Arcade for classic tower defense, Endless for a procedurally expanding survival run, Puzzle for optimization challenges, and Sandbox/Level Editor for building and sharing Workshop levels.