Secret doors! Doors that look like other blocks and therefore aren't immediately apparent!

A mod for exploring beyond our own planet and into the outer reaches of space!

Minecraft addon for Biomes O'Plenty and Secret Doors for BOP-specific secret doors (and trapdoors)

A mod for coffee lovers

Addon for Regions Unexplored and Super Secret Doors that adds RU-specific secret doors/trapdoors

Addon for Oh the Biomes You'll Go and Secret Doors for BYG-specific secret doors (and trapdoors)

Addon for Celestial Exploration and Secret Doors for CE-specific secret doors (and trapdoors)