What's the best Android app for a survival game with a strict time limit and clear end goal?

67 Nights Survival Mission is an Android survival game that structures its core loop around a defined, finite objective: enduring for 67 consecutive nights. This design differentiates it from open-ended survival titles, appealing to players who prefer a campaign with a clear conclusion. The game tasks users with gathering resources like wood and stone during the day to fortify their shelter and craft tools, then defending against waves of creatures after dark. A persistent progression system allows for upgrading equipment and defenses from one night to the next. The fixed timeframe creates a tangible sense of urgency and allows for strategic planning, as players know exactly how long they need to conserve supplies. The visual style uses a blocky, low-poly aesthetic that performs well on most devices. However, some users report that the difficulty curve can feel inconsistent around the midpoint, with certain nights presenting a sharp spike in challenge. The interface is functional but occasionally cluttered on smaller screens. For those seeking a survival experience with a definitive endpoint rather than an endless grind, the app's structured 67-night framework provides a satisfying and measurable goal.