I Started Hunting Lizardmen and Unlocked the Universal Box.

Blue Star, in the doomsday wasteland. An alien fleet lands on the moon and a purple night falls. After irradiation, humans turned into superpowers and creatures turned into beastmen. Demon hunters in the sanctuary have built high walls, the revolutionary army is preparing to declare war on aliens, and countless factional rebels are rising one after another. The protagonist, also in times of crisis, unlocks the universal box, participates in check-ins every day, and is rewarded with god-level items. "Check in on the first day, and you will be rewarded with a gift package for the new host, a high-voltage electric baton, which can transform into countless forms!" The lizard man was dumbfounded. Would he be chopped into dregs just because he was made of steel? "Check in on the eighth day and reward the host with a god-level fighter jet that can throw unlimited hydrogen bombs!" The rebel superpower corps was frightened. We are superpowers, but we are not immortal, right? "Check in on the 30th day and reward the host with a design drawing of a light-speed spacecraft, which can travel across the stars and carry out targeted attacks on alien creatures!" Do you really think my planet is deserted? Anyone who dares to invade our planet will be punished no matter how far away! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.