RPG Heirs of the Kings – Kotobuki Solution Co., Ltd.

Last updated on December 6th, 2025 at 08:27 pm

RPG Heirs of the Kings – Action Game Review

RPG Heirs of the Kings Screenshot

RPG Heirs of the Kings is a Action/Roleplaying game from Kotobuki Solution Co., Ltd., first launched in 11th May 2018.
It’s rated 9+ and currently has 144+ ratings on the App Store.

What Makes RPG Heirs of the Kings Stand Out

A story of destiny, and encounters between those with the blood of the rulers!

Laura, a girl who has lost her memory, and a mysterious pursuer.
Grant, a young man, happens to come across Laura, and, in order to protect her, becomes separated from his father.

Grant's father seems to know something about this mystery. With the words of his father ringing in his heart, Grant's journey begins, for Laura, and to save the world from danger!

  • Strengthen Abilities with Soul Maps
    Each character has their own unique Soul Map. You can select and strengthen abilities as you desire. Soul maps expand alongside character growth. Develop the party members' abilities just as you wish!

  • Weapon Customization and Arenas
    The game is full of satisfying content! Collect material to customize your weapons. Test your strength at one of the Arenas!

  • Theme Song
    The game features a theme song sung by Eri Kitamura, famous as a voice actor in Japanese animation!

  • The game can be played in its entirety without the need for in-game transactions.

This Action game offers engaging gameplay and regular updates for mobile players.

Player Feedback

As a newer release, RPG Heirs of the Kings is building its player community. Early feedback suggests .

Recent Updates & Development

Latest Update: 11th May 2018

Recent improvements include:
This app has been updated by Apple to display the Apple Watch app icon.

English version released!

Download & Availability

RPG Heirs of the Kings is available through the official App Store for iOS devices.

Get RPG Heirs of the Kings on App Store

Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.

Compatible with iPhone and iPad devices.

Player Experience Highlights

Community Insight:

Great story and great game so far battles are good and the magic system is great with soul maps! We recommend this game!! Keep it up Kemco.


The story is nice and play is good.


Awesome to have a good old school RPG thats free.


So far Ive had a lot of fun with this game. Somewhat simple straightforward storyline and side quest but its a good time and the soul map system is nice.


We can honestly say that every game this developer has made is complete gold. We love every thing about these games. Nothing is to over the top, and the storyline isnt convoluted at all. Im excited to see how they work in the soil map system as we are writing this review before even starting the game.


Solid game. Ive enjoyed most of the rpgs these guys make. And the ones we havent have still been good games they just had a few elements we wasnt fond of.


We just beat the game and the story was great to follow the strategies were limitless the balanced progression of each character not having to pay to win.


These RPGs are very familiar and also fun to play. Story is enough to keep us going.


Its a good game, we always love the soul map features and games like it.


We personally enjoy these games that are similar to Asdivine. Im only about to get the ship in this game, but we hope to be awarded by trying to explore beyond the bounds of the storyline in this ship. :) Keep up the good work. We love you guys. Some questions we have along with some ideas: Have you guys at Kemco ever played InflationRPG? Its one of our favorites iOS games, and we were wondering if you all would ever consider taking some ideas from that game such as secret bosses. Aside from that, we were wondering if you guys have implemented any easter eggs into your RPGs to make it somewhat more rewarding to people who wander off into different areas to find better loot. Lastly, do you guys have a Discord server? Perhaps itd be neat to start one up so you could better communicate with fans of your games. Edit: we just finished the game but Im a bit bummed out that there were no postgame quests. Did we miss anything????? What happened to Ms. Curie???? Itd be nice if there was a discord server so we could ask questions like this.


Like the app and music but we want a landscape view of the game.. Thanks for the attention. Keep the good work.


The ads can get a little irritating, but thats the price of a free game. The way they introduce the ads in story is pretty amusing. The game and story was entertaining, but there is extra fluff thats pretty boring.


The game is really fun, kills a lot of time if your board.


Game mechanics are promising but end up being unrewarding and safe, which is the same problem with the story past halfway. It avoids dark themes for all but one character, who is left more cheated by the safe writing than actual drama. A shame since the characters do start to warm up to you. The soul map ideas is promising, since you can customize your characters and even alter their abilities with special stones you collect. We felt that the game got away from this with the gold you collect, since your allowed to get high powered items without levels and the result is being overpowered by just a single character mid game that eliminates the challenge for everything but the level bosses, who are stereotypically strong. Extra game content is mostly Ignored and we discovered late in the game that side missions are only available if you go back to a previous town…said no on ever. There is no attempt to entice you and neither did the story. Not a good sign. Honestly, everything about the game mechanics and content is similar to what went wrong with the story. Too much convenient changes and along the way, the ending itself was deemed too dramatic and was effortlessly thrown aside by the virtuoso time travel. Except not apparently for Serena, who we guess fell out of favor of any love story since Laura is the favorite. But dont worry, the main characters get outshined by a bald guy who could be described as more a convenient god unless he fights mortals. :/ If you like stories, you will be disappointed. Its ok with a few laughs, but not rewarding in the end. If you like game mechanics and content, well there is enough to make you busy but more likely you also will be disillusioned by how little it matters given it will have no bearing on your experience in the game.


If you arent connected to the internet, some of the nag screens only go away after a few seconds. If you dont want people playing for free, dont make it free. In the meantime the excessive nag screens make it unplayable so enjoy your 1 star.


Partly through the game, it will begin to spam you with ads. Anytime you have a loading screen they'll do it. Save, you get an ad. Enter a town or dungeon, ad. Fight some enemies, ad.
User feedback from Apple App Store


App Details

  • Version: 1.1.1
  • Size: 477.37 MB
  • iOS: 9.0 or later
  • Languages: EN, JA
  • Content Advisory: Infrequent/Mild Cartoon or Fantasy Violence, Infrequent/Mild Profanity or Crude Humor
  • Developer: Kotobuki Solution Co., Ltd.

Last updated: 11th May 2018 | Genre: Action, Roleplaying | Developer: Kotobuki Solution Co., Ltd.

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