I've been building Roblox maps for 3 years and these are the patterns I see in every failed game:

1. No clear spawn area. Players load in confused. Your first 5 seconds determine if they stay. Put a tutorial zone or visual path right at spawn.

2. Too many open spaces. Empty terrain = boring. Fill areas with interactive objects, hidden loot, or environmental storytelling. Every room should have a purpose.

3. No difficulty curve. Wave survival maps that start at max difficulty lose 80% of players in wave 2. Start easy. Let them learn the mechanics. Ramp up by wave 5.

4. Copy-paste lighting. Default Roblox lighting looks amateur. Use ColorCorrection, Bloom, and Atmosphere to set a mood. Dark horror maps need fog + low ambient. Bright PvP maps need sharp contrast.

5. No reason to come back. Add progression — unlockable areas, daily rewards, leaderboards, or exclusive skins for returning players. Retention is everything.

I built RoVault to share premium maps, assets, and templates that solve these exact problems. Every map in the vault is designed with retention in mind.

Check it out if you're serious about building games people actually play.