Click on the empty tiles to the left to construct buildings, use them to defend your base from enemy and to produce units to attack them. All structures are upgradeable, which makes either them or units they produce more powerful.
Survive the night fighting off zombies from your barricade. Survive longer than a day by making use of the daylight hours effectively by repairing your barricade, searching for weapons and looking for other survivors to help repair and defend.
The Muck Beetles stampeding across Nuna want to eat all your tastiest flowers! Luckily Wedge has developed some great weapons to fight the muck invasion. Plant flowers to gather lumins, and then build up your water defenses to melt those bugs pronto!