Boobytrap Defense

Boobytrap Defense is a free Android strategy game built around uncertain trap placement. A trap reveals its type only after you put it down, and its position is fixed for the rest of that battle. You must cover branching routes while deciding whether to spend gold on additional traps or upgrades shared by all traps of the same type.

The campaign spans eight worlds and 56 battlefields. Each battle has five regular waves followed by a boss. Surviving enemies cost you life, while failing to defeat the boss before the timer expires ends the battle. Boss parts unlock special trap abilities.

Progress is saved locally on your device. The activity log can rewind progress and resources together, so returning to an earlier point removes what you earned afterward. Optional rewarded ads can restore life.

The Android version launched on October 28, 2026. Version 1.1.0 adds English alongside Korean; change the language in Settings. Store screenshots show the Korean interface. Requires Android 8.0 or later and contains ads.