Rogue Legacy 2 is finally out of early access and has a very favourable Steam rating. There are more monsters, biomes, and ancestors to experiment within this extended sequel. Every component of the game has been polished and updated, transforming it from a pretty simple small randomly generated dungeon crawl into a highly contemporary hack-and-slash that resembles Dead Cells.
There’s so much to find here, with numerous levels of increasing difficulty to smash through — and the Mysterious Key is the largest mystery in the game we’ve discovered so far.
The Mysterious Key doesn’t even explain how to utilise it. The Mysterious Key is found late in Rogue Legacy 2 and is dropped by a specific spoiler-y boss – all you need to know is that you can’t miss it. Once you’ve obtained the key, you may use it to enter a magical room filled with lore.
This area also contains one of the 15 Scar challenges, but only once you’ve fought the Prime version of the final monster. If you’ve defeated every powerful bonus boss and still don’t know where to utilise the Mysterious Key, here’s a straightforward guide with all the answers.
Read Next: How to Complete Hidden Secrets, Hidden Chambers in Rogue Legacy 2
Using Mysterious Key in Rogue Legacy 2
A particular item dropped by an ending boss is the Mysterious Key. The key doesn’t indicate anything about how to use it or what it’s for. Here’s where to utilise the key to find a tonne of free knowledge for yourself.
Return to the instructional area and proceed to the tower of lamps to the right of the enormous structure. To reach the icy rooftop, climb to the top and jump left. Look for a little campground on the roof. The mysterious key can be found here.
You may slide down into a secret passage underneath the campground. Follow this road until you reach a door, then enter and proceed to the next door. You can now utilise the Mysterious Key.
The Mysterious Key unlocks a room filled with information and the game’s most difficult Scar Challenge, which comes only after beating the Prime version of the final fight. This is just for advanced Rogue Legacy 2 players. At the very least, you may enjoy learning the game’s deepest, darkest secrets or, at least, the deadliest secrets revealed thus far.
