You prefer polished, content-complete games. Check back after a few more major updates.
You can build anything from small shacks to fortress-like structures with walls, traps, and defensive spikes. Building is intuitive (Snap-to-grid system) and visually satisfying. Raids (PvE) test your defenses periodically.
Play on lowered difficulty or custom settings to reduce grind until the devs rebalance progression.