Castelian
(GameBoy - PAL, Action & Adventure)
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Complete
$38.51
Loose $12.48
Developed by:
Bits Studios
Published by:
The Sales Curve
Released On:
01 Jan 1991
Also available on:
Julius is his name. Demolition is his game. Eight colossal towers that almost crack the sky! You and Julius - the Anurian Hybrid - are charged with the task of collapsing the alien towers. As Julius climbs and leaps across the face of each tower, he is confronted by potent and very deadly adversaries. Roving Hexalons, scanning I-Balls, orbiting Spheroids and dissolving pathways threaten you at every turn. Their mere touch will cost you your life! Yet, somehow, you must reach the tower's top in order to detonate your powerful D-bombs! Your courage, skill and determination will guide you to the summit of Castelian. Fire your Carbonobombs, catch the high-speed elevator, and escape into the doorways of the unknown. The island's future depends upon you and Julius. Watch him, learn his secrets and demolition will become your game!
Part #:
DMG-CJ-EUR (Europe)
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Prices as of 09 Oct 2026
Typical $38.51–$38.51 (last 90 days)
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Market activity: active · about 12 sales a year
Activity is a 12-month sales count. Dashed segments rest on two sales a year or fewer.
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Manual
Game Guide
Extracted from the original game manual
This is an arcade action game where players control Julius, a gem miner, tasked with destroying alien towers threatening his island home. Players navigate levels, collect gems for bonuses, and avoid hazards to defeat the alien threat and achieve a high score.
Story
Just Another Day in Jemmerville
You're witnessing a typical sparkling, summer morning in downtown Jemmerville. Both suns have risen over the planet Centrus, where summer, of course, is the only season.
It is here, on the island nation of Jemmerville, that the most valuable centrubies, diamonds and sapphires are mined. The island's precious gem-deposits are talked about throughout the Triangulum galaxy, and they're the envy of almost every life-form in this corner of the universe.
A Serious Situation
Julius was asleep in his terraineum when the holographic intercom sprayed out its message. It was the president of Domoloco and Sons inc.: "Julius we have a serious situation."
"The governor has reported that 7 alien towers have surrounded the Island. If one more appears the island will be completely enclosed. The naviports are almost cut off. The hyperfreighters are trapped...nothing is getting in or out."
"I've given the governor my personal promise that Domoloco and Sons would handle these towers...No one knows what they are or where they came from but I want them demolished! Now that's not too difficult a mission, is it?"
Julius slowly opened his eyes and found that the president's personal hologram - not the one of his secretary - was still activated: "Wake up, Julius, and topple that tower!" As Julius started to say something, the hologram began to dissolve as quickly as it had appeared.
Julius at the Bonus Level
With the crumbled remains of a tower behind him, Julius advances to the diamond-studded bonus level. Centrubies, sapphires and diamonds - all free for the taking. The more gems he collects, the greater his bonus becomes.
Julius has been told that lives which have been lost may later be restored. Time itself has been known to stop flowing in the rare atmosphere where these ultraprecious gems are found.
A few more stones, a few more clouds to hop. Carry the gems all the way to the clock tower and Julius will be awarded with extra time; the next tower may not be so easy, though.
And those pits, the bottomless ones! If Julius isn't careful about where he jumps, he'll discover that paradise has a few holes in it. Any time won may be lost. But Julius doesn't give up easily: "Bring on the next tower!"
Score
08 85832
01
The Reward for the Highest Score
Julius, you've done well. The inhabitants of Jemmerville are proud of you. They want your initials displayed in a hologram projected above the city's Hall of Halls.
Enter Your Initials
•
Select the first letter by pressing either the UP or DOWN buttons.
•
Press button A to enter your initial in the hologram.
•
Repeat steps 1 and 2, above, for each of your initials. High scorers can have up to 3 letters displayed.
Congratulations Julius!
Superb job of collapsing those menacing towers. You've earned a bonus for this. And since it's still Sunday, take the rest of the day off.
E.B. DOMOLOCO
President Domoloco and Sons inc
High Score Table
CASTELYAN
40 PLH
01
3:001000 PLH
3:881888 PEH
LASI GORE
How to Play
Preparing for the Mission
1. Make sure the GAME BOY® power switch is OFF.
2. Insert the CASTELIAN® cartridge as described in your GAME BOY® instruction manual.
3. Turn the power switch ON.
4. Press the START button when you're ready to begin the mission.
Restarting the Game
Pressing the START, SELECT, A and B buttons at the same time will restart the game from the beginning again.
Julius, Choose Your Music
Either music or sound effects - but not both - will be heard while you are playing Castelian. If you select both, then only the sound effects will be heard during the game.
Before you press the START button to begin the mission, you can select the music/sound effects option(s) that Julius likes to hear.
•
Pressing the SELECT button for the first time will turn off both the music and the sound effects.
•
Pressing the SELECT button again will turn on the music, but the sound effects will remain off.
•
Pressing the SELECT button for the third time will turn on the sound effects, but the music will remain off.
•
If you press the SELECT button for a fourth time, music and sound effects will both be turned on again.
Taking on the Towers
There are 8 towers to be demolished before Julius can return to his Sunday snooze. You must guide Julius through to the top of each tower so he can detonate his D-Bomb (Destructo Bomb) and demolish the tower. When Julius succeeds at demolishing a tower, he is awarded bonus points for his speed and skill.
Your mission begins with Julius located at the bottom of the first tower. Use the LEFT or RIGHT buttons to move Julius from ledge to ledge. Be careful: some ledges are very weak, and they may crumble as you walk onto them. When you arrive in front of a doorway, press UP, and Julius will walk through to the opposite side of the tower. If Julius must re-enter the tower, press UP again.
Julius makes his way up the tower by walking up stairways and by using the elevators. He can walk up the steps without you making him jump, but the powerful gravitational field of Centrus may pull him down the stairway if he stops for a rest. When Julius steps onto an elevator ledge (a brightly lit, small block) you can take him up by pressing the UP button. Quickly get Julius off the elevator, because in a few seconds the elevator will descend even if you didn't press the down button.
The trek up the sides of each tower presents unknown dangers to Julius. Some obstacles can be stunned, and others, like the orbiting Spheroids can be blown apart. But watch out, Julius! Hexalons, I-Balls, Tri-Zeroop and Metaflii are all invincible. Even Carbonobombs, constructed out of a top-secret, harder-than-diamond compound, are useless against these all-powerful beings.
Julius' only defense against his adversaries is to run away or to slip into one of the doorways. Otherwise, a single touch from these deadly aliens will knock Julius off his feet. If he falls into the ocean...well, Anurian Hybrids can't swim.
Julius begins the game with 3 lives. For every 5000 points he earns, Julius will gain an extra life. But even the extra lives will not help Julius if he runs out of time. And if Julius runs out of time, so might Jemmerville. Keep Julius moving. Keep Julius alive.
The Deadly Obstacles - To Name Just a Few
•
I-Balls
•
Hexalons
•
Tri-Zeroop
•
Metaflii
Controls
UP
Goes UP on elevator
LEFT
Walks to the LEFT
DOWN
Goes DOWN on elevator
RIGHT
Walks to the RIGHT
SELECT
SELECTS sound effects and/or music options
A
Shoot, Carbonobomb (while standing), or jumps (while walking)
B
Not used in this game
START
STARTS game/Pauses game/Releases pause
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