逆転オセロニア

Content rating
Rated for 7+
1M+
Downloads
Content rating
Rated for 7+
Mild Violence
In-Game Purchases (Includes Random Items)
Learn more
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About this game

●The more you're losing, the more fun it is!! ○
Dramatic comeback battle "Othellonia"!!
With friends! With rivals from all over the country! Enjoy heated real-time online battles!!

●Super easy Othello battles that are as fun as flipping! ○
Easy to play with Othello rules.
Place character pieces, sandwich them, flip them, and deal damage!
Reduce your opponent's HP to 0 to win! Aim for a "major comeback" in thrilling offense and defense!!

●Hone your skills in nationwide season matches and daily Coliseum events! ○
Compete with rivals from all over the country for points in season matches and strive to become Diamond Master!
Aim for the top spot in cup matches with limited time and number of matches! Battle for rewards in the Coliseum!
Can you survive the various battle stages!!

●A variety of skills that accelerate your comeback battles! ○
Attack Boost, Defense, Healing, Curse, Poison, Trap, Pierce... The combinations of unique characters' skills and combos are endless! Build your own deck and achieve victory with a well-crafted strategy!!

●Get excited with stamps! ○
Send stamps to your opponents during battle!
Encourage yourself, praise your opponents' efforts, or have fun using stamps to liven up your comeback battle!

●Charming Character Voices○
A stellar cast of voice actors will be joining you to liven up your comeback battle!

・Kana Hanazawa
・Miyuki Sawashiro
・Ryuichi Kijima
・Kotori Koiwai
・Juri Kimura
・Ayaka Ohashi

And many more (in no particular order)

The stage of reversal, "Othellonia," awaits you!

[Service Provider]
DeNA Co., Ltd.

[Recommended OS Version]
Android 8.0 or higher (2GB RAM or higher) recommended
*Some devices are not recommended or compatible.
*Devices released before 2014 are not recommended and are not supported.

[Disclaimer]
(1) Support is not provided for devices and OS versions other than those recommended.
(2) Operation may be unstable even on recommended devices depending on your usage.

[Other Inquiries]
If you have any questions, please contact the DeNA Game Support Office at support-othellonia@dena.com.

Thank you for your cooperation.
Updated on
Jul 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and Financial info
Data is encrypted in transit
You can request that data be deleted

What’s new

◯Ver.21.2.1アップデート情報●
 ■不具合対応
 ・不具合の修正を行いました。
 ※詳細はゲーム内のお知らせをご確認ください。
 
 ■その他
 ・細かな調整を行いました。

引き続き、『逆転オセロニア』をよろしくお願いいたします。
Content rating
Rated for 7+
Mild Violence
In-Game Purchases (Includes Random Items)
Learn more

App support

About the developer
DENA CO., LTD.
app-support@dena.com
2-24-12, SHIBUYA SHIBUYA SCRAMBLE SQUARE SHIBUYA-KU, 東京都 150-0002 Japan
+81 3-4213-7770

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