Learning from Failure

learn what went wrong and what to do about it based on past failures

We should learn from our failures, not our successes!

Let’s design games while thinking about what we can do to prevent ourselves from making the same mistakes.


Buy a character

buy character directly

Gacha effects

Designing a gacha effects

Inflation Control

inflation control specification

Insufficient content

problems caused by lack of content

Login Bonus

designing a login bonus

Low ARPU

about the problem of low sales per player

Manipulation of Sales Chart

Manipulation of Sales Chart

Terms of Use

contents of terms of use

Too luxurious event rewards

the risk of too luxurious event rewards

Too much leverage

over-leverage