What was decided
- The name is final: ‘Isekai Defend’. The guide character is Johnson, a retired hero (a name that works overseas).
- The home screen follows a mobile-battler lobby layout.
- Three difficulties — Intern, Regular, Executive. Executive adds 25% more damage per tier, and the first hero is free.
- A daily challenge (one special-rule game per day) and an endless mode so repeating the same game still feels different.
- Auto-chess-style traits — gather heroes of one kind to unlock effects, and they apply even in solo games.
Difficulty was measured with bots, not guessed
We didn’t set it by feel. AI players ran the same setup many times and we looked at win rates. 80 games swung ±5 games, so we went to 160 and it settled. The bots also showed in numbers that dodging skill decides wins more than anything else.
Bots use ‘same seed = same gifts, same dice’, so items like card gifts must be measured by adding seeds, not heroes.
On art — image AI can’t write Korean
When the logo went to an AI image tool the Korean text came out garbled. So we split it: the AI draws the picture, a font draws the text, and they are combined.
The money side
Cosmetics are a one-time permanent purchase, ads are optional, and hero and companion slots can be earned by playing or bought with cash — a line that keeps revenue open without turning it into pay-to-win.
Still open
- Choosing the move-and-attack style from options A/B/C (awaiting decision)
- Notification placement and ultimate-move effects
- First store listing, developer verification and outside testers
When the app ships, a ‘Get it’ button will appear at the top of this series.