An easy wave of monsters will summon after 10 minutes. You can also instantly summon a wave by clicking the combat button [img]https://clan.cloudflare.steamstatic.com/images//45033351/d0f38b0778ba53a336e6a96d91574829ec85b05e.png[/img] next to the disaster bar. After 3 easy waves, a harder wave ([b]Accident Wave[/b] [img]https://clan.cloudflare.steamstatic.com/images//45033351/a19cfa1bc23c99fea7adc069fb00f86795210324.png[/img]) will summon, with some boss monsters. After disaster level 10+, a more challenging wave will summon after 3 [b]Accident Wave[/b]: [b]Small Disaster Wave[/b] [img]https://clan.cloudflare.steamstatic.com/images//45033351/33d094e045255de4cdc3d1891504efb605dbe34e.png[/img], with many boss monsters. When the disaster level reaches 15+, [b]Small Disaster Wave[/b] will also summon some giant monsters. The giant monster has more HP, and can perform AOE attack, so it can damage and destroy towers. As the disaster goes up, monsters will stronger and more numerous. Next Update: [b]Great Disaster Wave[/b] with King monster after disaster level goes to 40. King monster has more HP and some special ability.