Slappi’s Den of Fun is a unique celestial body inRevenge of the Savage Planet, which can be pretty tricky to unlock.
It’s the last of the five planets to unlock, so completing the process is going to take time. Incidentally, this planet is also a secret entity; all other planets are part of the main storyline. If you’re not careful, you could easily miss the chance to unlock it.

How to unlock Slappi’s Den of Fun in Revenge of the Savage Planet
Slappi’s Den of Fun has a different appearance from other planets on the Planet Map, which makes things a tad confusing for players. This also makes this planet missable in the first place. To unlock it, you will have to find all ofSlappi’s shrines, which are located across fourdifferent planets.
Barring Stellaris Prime, you’ll have tounlock all the other planetslisted above. You can unlock all of them by simply playing along the main story, which will automatically cover the requirements. This will allow you to expand your collection of celestial bodies that you can then travel to.

Once you complete a shrine, you’ll unlock Pentaforce pieces. There’s a total of five pieces to collect (corresponding to the five shrines). Once you collect a Pentaforce piece, go back to your Habitat. Then, complete that piece via research. Slappi’s Den of Fun will be available once you complete research for all five pieces.
Is it necessary to unlock Revenge of the Savage Planet?
If you’re focusing entirely on the main story and don’t care about other aspects of the game, it’s not necessary to unlock Slappi’s planet. However, it will provide you with extra pieces of lore that will remain incomplete otherwise.
Once unlocked, the planet will be visible on your Planet Map. The size of this planet is a lot smaller than the other available options, and it’s also pretty linear to explore. Unlocking it does take a lot of time, but it’s still a fun activity to engage in.







