Gatekeeper is an isometric roguelike that focuses on straightforwardness: no complex hubs, just choose a character and get started. Missions alternate between simple objectives such as escort, resistance, and activation, and spectacular, well-constructed boss fights. The power-up system is effective, with 10% bonuses that are cumulative and immediately noticeable. However, the progression system is immature: perks are unlocked with a slow “point collection” that does not enhance the character but only the assortment in the shops, and abandonment due to excessive grinding could come very soon.