Ken Leaves Meta After Harpagia Idle RPG Hits $10K Monthly
Starter Story profiles Ken, a former Amazon and Meta engineering manager who built Harpagia, a text-based idle RPG for RuneScape fans, using AI tools. The game reportedly reached $13K monthly revenue and 50,000 downloads, with his Meta exit following a Reddit post that lifted revenue.
Original post · 1 min read
Ken spent 12 years in big tech (Amazon, then engineering manager at Meta). Hadn’t written a line of code in 4 years. Then AI tools clicked, and he shipped a tiny card game in 6 weeks just to learn how to launch.
That warm-up became Harpagia which is a text-based idle RPG for RuneScape fans.
The numbers:
> $13K/month average, $155K in year one
> 50,000+ downloads across iOS + Android
> 6% conversion (games average 2–5%)
> $3 revenue per active user
> $500/month in costs, $0 on ads
His deal with himself: if the game hit $10K/month organically, he’d quit Meta. Six months in, he made his first Reddit post - screenshots + a note on how free-to-play it was. The comments were brutally critical. It didn’t matter. Revenue jumped from ~$1K to $10K almost overnight. He left Meta that same month.
His lesson: you don’t need millions of players. A few hundred active users in the right niche can do $100K+/year.


