Sounds like a blast—let’s keep it lean so the math stays fun, not a nightmare. Start with modular hex tiles that pre‑calculate terrain bonuses and troop counts; use a simple formula like total strength = base × (1 + terrain bonus) to keep it fast. For painting, give players a brush tool that applies texture layers on a flat canvas, updating only the changed pixels so the engine stays snappy. Keep the trap logic on a small, isolated module and give players a clear way to preview or skip it, so no one gets lost in a labyrinth of hidden hazards.

Got it—less is more, and we keep the math tidy. One flag per tile, a look‑up table for terrain, shader brush, and a polite warning pop‑up for skipped traps. That keeps the engine snappy and the players in the loop. Let's prototype that flow and see if the numbers still feel epic.