The gameplay centers on "mining" through 2D-style layouts within a 3D engine, emphasizing exploration over complex combat.
According to LAGS’ public development board: Haileys- Treasure Adventure v0.7.3.4 by LAGS
The maps are non-linear. You’ll often find secret passages behind breakable walls that lead to massive gold hauls. The gameplay centers on "mining" through 2D-style layouts