Skill trees are heavily discussed and usually praised for flexibility, expanded variants, respec options, and buildcrafting. A few reviewers call parts thin or imperfect, but the overall evidence supports depth and experimentation.
Reviews describe the Armor Matrix or skill tree as useful and sometimes exhaustive, though one calls it simple and another frames it as a meta-progression layer rather than deep buildcrafting.
Skill tree depth is modest but present through evolutions and passive abilities. Reviews mention unlockable mental upgrades, though several say the system is not essential.
Skill tree depth is only lightly supported: one preview found skill bricks and expected them to feed a skill tree, but the full system had not been shown.