Spike traps look only mildly suspicious until they recieve a redstone signal, whereupon vicious blades jam out into whatever is in their way. Whoever (or perhaps whatever) designed these clearly wanted to keep out intruders.
Dungeon Delving
Spike Trap
Мод не переведён на русский — текст на английском, как в игре. Рецепты и предметы ниже — с нашими названиями.