Devil Stone is an RPG which can be played offline without extra charge. The story is about Phicus Sera, the successor to the throne of the Underworld of the tenth generation, being sent to human territories after being deprived of his power by the old Devil King.

To find the fragments of Devil Stone, scattered all over the continent, regain power, and succeed the throne in the Underworld, Phicus encountered Eiji John Austin, the Champion of the 19th generation, and joined Eiji’s team to adventure into the Underworld.

On the journey to adventure with the Devil King and the Champion, the conspiracy hidden is disclosed little by little. Everyone in the team has changed as well. On Lux Continent, the Champion fights against the Devil King, and the story is going in an unforeseeable direction.

Whenever the Underworld Crusade Team reaches a new location, different events and missions will be triggered. In quests, you will bump into all kinds of monsters!

What’s New

Version 1.5.0

Update Content
・Add Korean Language

・Improve some terrain issue
・Stuck in battle after load game

Ratings and Reviews

3.9 out of 5
9 Ratings

9 Ratings

Karlinc ,

Bugs squashed, worth a play

This game has a lot of charm. Art and sound design are very good. The UI is streamlined, it’s nice to be able to tap away to close a window instead of having to hit a close button. Things like that add up.

The story is better than I expected. English translation is has a few poorly worded buts, but everything is understandable. The characters are not generic.

My criticism is more around the pacing, difficulty, and battle strategy options. Levels are easily made so you hardly need to use potions or healing spells aside from a later boss battles. New weapons are available too quickly sometimes and for not much improvement, so it can be better to wait to upgrade. Phicus’ 2nd skill ends up outperforming his final skill, so I think there should be some balancing still. But there are no buffs or rebuffs, no elemental components, and your companions only end up with two skills, so strategy in battle is really simple. It could use a greater difficulty mode, but since there isn’t much tactical potential I don’t think it would be worth it.

This is a casual rpg with a good story, great art style, good controls and sound design. Taken at that, I think it’s worth a play and will buy the sequel.

(I’ll add that I sent the devs some of my bugs I found in the previous version, and they responded appreciatively. then responded again a few days later to let me know the update was out. Classy!)

Double.D ,

Not great but not bad

I can’t comprehend the five star ratings. It’s not a bad game, but there really isn’t much too it. It could definitely use a dollar or two struck off the cost.
There isn’t much there, but what there is is perfectly fine. As RPG games go, this one comes heavily equipped with rails that you simply won’t be able to deviate from. It’s all very linear, which is par for the course on most mobile games of this type. Much of the progression is pure flavor since the MC’s first combat skill you ever get is significantly more effective than anything else. Ditto for the first AOE skill for multiple opponents when you’re alone. You may try the other skills but you’ll soon realize that it is foolish to use anything but those two. The rest is pretty tacked on.
Same with weapons. There are some variations but they boil down to “good” or “worse, but with a critical hit chance.” Hint: do not pick the critical hit chance weapons. Stick with persistent good performance.
All in all, a decent game to play over a lazy weekend when you won’t be going out and then delete when finished. The ending hints at a possible sequel, but I’m not sure I’d want to return to this world without the promise of a bit more substance or a lower price.

sbelli69 ,

Game breaking bug even after update!

Buyer beware. This game is really promising but after waiting for an update to fix a bug preventing you from being able to progress, sadly it’s still broken.

Edit: finally got past bug

Developer Response ,

Hi, we’ve confirmed an issue that using iPhone6 with iOS 12.3.1 will crash when entering village, this is the issue that iOS and game engine caused, we’re also waiting for update from anyone of them, on the other hand we’re also trying to fix it by ourselves, however this take times, can you please send us an email to so we will send you an email when the issue got fixed, cheers.


Simplist Limited
1.6 GB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese, Korean, Simplified Chinese, Traditional Chinese

Age Rating
Rated 9+ for the following:
Infrequent/Mild Cartoon or Fantasy Violence
© 2019 Simplist Limited


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