A downloadable game

Buy Now$6.99 USD or more

Castle Helios is an exploration and puzzle adventure game with a bit of combat. Set as a prequel to The Wizard's Apprentice, you play as  Emperor Solus before he became Emperor. Recently having lost his powers while fighting the current ruler of Castle Helios, the evil King Etanakh, Solus must find the 6 Magic Keys that will allow him to escape the Castle alive.

Use magic spells to help you traverse the Castle's rooms, kill or evade monsters, defeat bosses, and solve puzzles. But first, you must find the magic items that grant you these abilities.

Magic Feather: Levitate and walk through the air! Reach high places or simply fly above monsters.

Fireball: Launch a ball of fire that can burn things! That means killing enemies too!

Ice Block: Create a block of ice as a stepping stone to get to higher places and other ingenious uses.

Tornado: Create a whirlwind that can carry enemies away and power wind-related mechanisms.

Fight several monsters guarding the Castle, and they may drop crystals--a special currency in Castle Helios that can be used to purchase optional upgrades. There are also a few hidden rooms throughout the Castle whose secrets may help you succeed. (These rooms will not appear on the map until you have found them.)

How to play?

There are two ways you can play Castle Helios.

Updated 28 days ago
Rated 5.0 out of 5 stars
GenreAdventure, Puzzle
Tags1-bit, Metroidvania, Playdate, Retro
Average sessionA few hours


Buy Now$6.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $6.99 USD. You will get access to the following files:

Castle-Helios_v1.02.zip 297 kB

Development log


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I'm loving this game, but am stuck on the robot boss.  I can't damage it - even with fireballs to the face.  How do I beat him?  Thanks in advance, love the game!

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Wait till he lifts his arm and shoots at you, then you can hit him in the chest with a fireball 2 to 3 times before he drops his arm down again. Rinse, repeat until you win. Good luck! 


Amazing ... thank you.  Annoyed with myself that I didn't work that out!  But really looking forward to Central Tower!


I've had the Playdate for only a couple of weeks, so I've been searching for new games.  Castle Helios has been my favorite game so far.  It reminds me of a mash up between Metroid and Zelda II (but far funner and not as frustrating as those games).  Definitely had a good balance of finding new abilities and using them to solve the puzzles.  I'm being cautious about what I pay for new and untested Playdate games, but this game was well worth the $7.  

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I’m just coming back to say how much I am enjoying this game. It’s a perfect PlayDate experience. I love the puzzles and the different  abilities which work really well. It’s just the sort of game that I purchased the PlayDate for - it reminds me of the classic BBC Micro game called Citadel. If I was to quibble, I would say the music is its weakest component - the tunes are a bit sparce and repetitive. One other frustration is the long walk from the save screen to the boss battle in the west tower, which I am currently struggling to beat. Every time you die, you have to work your way back through the same four rooms just to do battle again. It gets a bit frustrating. Two small criticism on an otherwise excellent game.

UPDATE: I finally beat the boss and finished the game at 99%. No idea how to get the final 1% which is going to bug me!


This is just my sort of game - a classic adventure platformer! Very cool!

However.... how can I be stuck on the first puzzle? The “crank flaming pot to heat cog to open door” puzzle has me completely stumped! The door won’t stay open! Can anyone help me out?


This puzzle is a trick! 😈 The torches are not actually how you heat up the pot. Instead, you need to use magic that should be able to learn nearby. 


wow, I’m not sure how I was being so dim not figuring that out

Really enjoying this game but stuck at 85%. I'm unable to figure out a way to the third key (the part with the statue hint?). Any other tips? Not sure if there is another way to message on itch.io.


There are two types of statues: the man with the moving arm and the beast that goes up/down. 

Here's a hint: You don't need to use both man statues, nor move all beast statues.

If you need a more detailed solution, just reply here and I'll give you a more thorough explanation.  But I thought you might want just a little nudge at first.

Ended up completing the game with 100% :) The game was great and I enjoyed all of the different animations and abilities. Seems like it was a lot of work to create!
I enjoyed The Wizard's Apprentice, too. I've also booted up before Conquest of Helios but haven't finished a complete playthrough.


Thank you for the hint! I went back and realized I hadn't tried just walking into the statues to interact....I had explored the entire map again, tried exploring the rooms above the statue that was pointing up, tried every ability in different ways around the first statue and in the second statue room, etc.. Oops!


Glad you enjoyed it. And glad you were able to accomplish 100%. I was a little concerned if it would be an issue or not, but you have proved it is very doable. :D

Hold onto your save game data. I'm considering some future updates where those with 100% completion could have some additional content to work through. Nothing solid just yet, as just released the game yesterday.


This puzzle was such a stumper but so good! Definitely satisfying to figure this one out haha! At 89% completion and trying to find the third key. Couple bugs to report but will update once i’m at 100% completion! Been really enjoying the whole feel of this game, great mix of challenging and charming!


THIS IS SO GOOD ! (I'm 57% through)

environmental puzzles are clever and varied / the acquisition of cry$tals & "special powers" is well timed / perfect amount of "go back to get to something you didn't have access to earlier" / the art is clean and clear to understand what you are looking at (which is no small feat on that TINY SCREEN) ... AND it made me smile. Great job!