Sunharbor Defense

Defend six harbors against 340 waves in total. Maps grow from 24×12 to 28×14 and 32×16 cells; odd-numbered missions include a few preset barriers, while even-numbered missions start clear. Beat each mission to unlock the next.

Combine eight defensive weapons with barriers to lengthen ground enemies’ routes without blocking them. Aircraft fly over buildings. Upgrade towers to level 6 and coordinate ground and air defense.

The platform saves your progress. The leaderboard sums your best verified victory score in each of the six missions. Replays only improve that mission’s best; failed runs and previews do not count.

Select a weapon on the right, then tap the map to build. On touchscreens, drag across the map and release to place. Select the same weapon again to cancel. Keep entrances, exits and enemy routes open.

Select a tower to upgrade or sell. Pay only the upgrade difference; the tower stops firing while upgrading. Selling refunds 75% of total cost, rounded down; barriers refund 1 coin. Enemy kills earn coins, but split children give no bounty.

Keys 1–9 select weapons or barriers, Space pauses, and N starts the next wave early. Waves also arrive automatically. 1×/2× affects the entire battle. Clear each mission to unlock the next; find the leaderboard below the game.