Terraria 1.4.5 Secret Seeds — All 35, How They Combine, and the Best Picks for Servers
Last verified: June 12, 2026. Terraria 1.4.5 "Bigger & Boulder" released January 27, 2026 across PC, console, and mobile.
The Bigger & Boulder update turned Terraria's secret world seeds from a handful of easter eggs into a full worldgen toolkit: 35 secret seeds, a proper unlock submenu, and — the change that matters most for multiplayer — seeds now combine, with each other and with the special seeds. This page lists all of them, explains the unlock mechanics, and picks the seeds that actually change how a multiplayer server plays.
How secret seeds work in 1.4.5
- Type it once, own it forever. Secret seeds never appear in the menu until you manually type one into the seed field at world creation. After that first entry, the seed unlocks in a secret-seed submenu where everything you have discovered can be toggled on or off for any future world.
- Names are forgiving. Seed entry is not case- or space-sensitive: teambasedspawns, Team Based Spawns, and TEAM BASED SPAWNS all work.
- Combinations are the new meta. Toggle multiple secret seeds together, or stack them on the classic special seeds (Drunk World, Not the Bees, Don't Dig Up and friends). Worldgen resolves the union, which is where the genuinely weird worlds live.
The full list (35)
Grouped by what they do rather than alphabetically, because that is how you actually choose:
World-shape changers: Extra Holes · No Surface · Planetoids · Surface in Space · Water Everywhere · Desert Everywhere · Mushroom Everywhere · Frozen World · Extra Living Trees · Extra Floating Islands · Infinite Rain
Biome and evil toggles: No Evil Biomes · Infected World · Hallow Everywhere · No Spider Caves · Pumpkins · Endless Halloween · Endless Christmas
Visual rule-breakers: Invisible World · Monochrome · Negative Paint · Xray Vision · Rainbow World
Progression twists: Start in Hardmode · Graveyard Bloodmoon Start · Vampire World · Portal Gun in Chests · No Traps · Bigger Cabins · Teleporters in Caves · Error World
Multiplayer-native: Team Based Spawns · Random Spawn · Dual Dungeons
The four seeds that change multiplayer
- Team Based Spawns — the headline for server owners. Each team color gets its own spawn region; joining a team moves your spawn. Faction survival, build wars, and team progression races stop needing plugin workarounds — the world itself enforces the format. Pair with No Traps for tournament-fair starts.
- Random Spawn — every player spawns somewhere different on first join. Perfect for scatter-survival events, "find each other" co-op openings, and hardcore races where shared spawn camping would ruin it.
- Dual Dungeons — two dungeons, two Skeletron fights' worth of loot routes. On an 8+ player server, the single-dungeon bottleneck (one Water Bolt, one early loot run) has always pinched; this removes it.
- Teleporters in Caves — pre-placed teleporter pairs through the underground. On large worlds with spread-out bases it quietly fixes the worst part of big-group play: travel time.
Honorable mention for co-op spice: Start in Hardmode for veteran groups who want night one to matter, and Graveyard Bloodmoon Start for events where the server opening should be a siege.
Running a secret seed on a dedicated server
- Generate-and-upload (simplest): create the world in the client with your secret seeds toggled, then upload the
.wldfile to the server and pointworld=at it. Every hosting panel with file access supports this flow. - Server-side generation: the dedicated server's world-creation prompt accepts the same seed strings as the client — type the secret seed name in the seed field. In
serverconfig.txtautocreate setups, theseed=value takes the seed name the same way. - tModLoader caveat: modded servers on tModLoader track Terraria's stable branch; check your tModLoader version corresponds to a 1.4.5-line build before assuming the full 35-seed roster is available there. (Our tModLoader server mods guide covers version pinning.)
- World size matters more with combos. Stacked seeds like Water Everywhere + Extra Floating Islands generate heavier worlds; on multiplayer, large worlds with combo seeds want more RAM than a vanilla large world. (See reducing lag on Terraria servers.)
Prefer to roll worlds until the generation is right? The Terraria world generator tool lets you iterate on world settings before committing your server to one — and if your group also runs Vintage Story, the same iterate-first flow exists as a Vintage Story world generator.
Where to go next
Pair your seed pick with the full 1.4.5 boss progression (all 33 bosses in order) to plan the server's arc, and the Bigger & Boulder overview for everything else the update changed.
Spinning up a fresh world for your group? Host a Terraria server with Supercraft — upload your seeded world or generate server-side, with daily backups either way.
Looking for managed Terraria server hosting? Supercraft runs Terraria dedicated servers with daily backups, instant setup, and 5 region options. Plans from $5.99/mo.