New in 1.4.5
Terraria 1.4.5 secret seeds: all 37 codes
Terraria 1.4.5 added 37 secret world seeds, each with one effect, in 7 groups: world paint (4), world generation (5), biome generation (7), structure generation (9), passive effects (5), spawn points (2) and other effects (5). Type the code in the seed field when you create a world; once used, the seed stays unlocked in the seed menu and can be combined with other seeds.
| Group | Effect | Code |
|---|---|---|
| World paint | Coat everything Echo | invisible plane |
| World paint | Paint everything Gray | monochrome |
| World paint | Paint everything Negative | negative infinity |
| World paint | Coat everything Illuminant | x-ray vision |
| World generation | Dig extra holes | jagged rocks |
| World generation | No surface | mole people |
| World generation | Round landmasses | planetoids |
| World generation | Surface is in Space | such great heights |
| World generation | Extra liquid | waterpark |
| Biome generation | No spider nests | arachnophobia |
| Biome generation | Hallow on the surface | does that sparkle |
| Biome generation | No infection | fish mox |
| Biome generation | World is infected | purify this |
| Biome generation | Surface is Desert | sandy britches |
| Biome generation | Surface is mushrooms | toadstool |
| Biome generation | World is frozen | winter is coming |
| Structure generation | Bigger abandoned houses | abandoned manors |
| Structure generation | Add Teleporters | beam me up |
| Structure generation | Actually no traps | more traps please |
| Structure generation | Halloween gen | pumpkin season |
| Structure generation | Rainbow stuff | rainbow road |
| Structure generation | Extra Living Trees | save the rainforest |
| Structure generation | Extra Floating Islands | the care bears movie |
| Structure generation | Poo everywhere | truck stop |
| Structure generation | Portal Gun in chests | we don't even test for that |
| Passive effects | Rains for a year | bring a towel |
| Passive effects | Endless Halloween | hocus pocus |
| Passive effects | Endless Christmas | jingle all the way |
| Passive effects | More lightning | electric boogaloo |
| Passive effects | No lightning | calm before the storm |
| Spawn points | Random spawn | how did I get here |
| Spawn points | Team based spawns | royale with cheese |
| Other effects | Dual Dungeons | double daring dangers |
| Other effects | Error world | I am error |
| Other effects | Graveyard Blood Moon start | night of the living dead |
| Other effects | Start in Hardmode | too easy |
| Other effects | Vampirism | what a horrible night to have a curse |
Questions players ask
How many secret seeds are in Terraria 1.4.5?
37.
Can I combine secret seeds?
Yes. In 1.4.5 found secret seeds appear in a sub-menu of the seed menu, where you can switch several on together and mix them with special seeds.
Is there one code that unlocks all secret seeds?
Yes, the wiki lists a single long code that unlocks every secret seed at once; it is a list of all the codes joined together.