This has been verified repeatedly. In one report from February 2025, a player built a 255-block-wide flat circle arena, yet the third wave of their gateway still failed, proving that horizontal space is often irrelevant if the algorithm is struggling with Y-level alignment or block-specific spawn restrictions.
Bound the wave size. Use a formula: max_wave_entities = total_ram_in_mb / entity_memory_footprint - 20% overhead . Hard-code a ceiling. No wave exceeds 10,000 entities, regardless of game logic. This has been verified repeatedly
In many tower-defense, RPG, or sandbox games, gateways are used to summon reinforcements, enemy waves, or boss encounters. In many tower-defense, RPG, or sandbox games, gateways
In most tower defense games, enemy units (bloons, zerg, drones) are not generated out of thin air. They are spawned at a specific location—the or Spawn Point —and then path toward the player's base. In many tower-defense
mutex.lock() if (pool.has_space(wave)) pool.reserve(wave) mutex.unlock() spawn(wave) else mutex.unlock() queue_wave_for_retry()
One of the most common causes is attempting to run a gateway in a dimension it wasn't designed for.