Bleentoro is described as 'simple logic game. It has no advertisements or microtransactions'. There are five games similar to Bleentoro for a variety of platforms, including Windows, Linux, Android, Mac and Steam. The best alternative is Mindustry, which is both free and Open Source. Other Bleentoro like games are Factorio (Paid), Dyson Sphere Program (Paid), The Quarry (Paid) and Factory idle (Free).
Create elaborate supply chains of conveyor belts to feed ammo into your turrets, produce materials to use for building, and defend your structures from waves of enemies. Play with your friends in cross-platform multiplayer co-op games, or challenge them in team-based PvP matches.