Sudoku Universe / 数独宇宙

Konstructors · 2017 · $2.99 · Casual · deal grade B

Measured on 2026-09-24 10:50 UTC, 11 days ago. The whole catalog is re-measured daily; a game that just launched can move fast between passes.

Estimated net residual revenue: $145 to $217 per month
Opportunity: $380 per month at x2.10 dormancy
Estimated lifetime owners: 166.0k
95% positive across 3214 reviews · 11.3 reviews/month

Why it's flagged

Developer silent for 5.5 years
Studio inactive: no public activity across 2 tracked titles
No Steam discount in 4.0 years (deepest tracked: -0%)

Analyst notes (AI-assisted)

Note written 2026-09-19; the live figures above take precedence over any numbers in it.

A casual Sudoku puzzle game with a space theme, available in 16 languages and built for relaxed play sessions.

Sudoku Universe sits in a quiet but stable niche: it's been generating modest residual revenue for seven years with a 95% positive rating and demonstrates strong appeal in Asian markets, particularly China and Korea. The title's 40-hour median playtime and 67% still-playing rate suggest genuine engagement despite zero marketing activity since the developer's last post five years ago. For a publisher seeking low-risk catalog backfill or an acquirer looking to revive a polished, multilingual casual title with proven retention, this represents a logical entry point at minimal competition. Most realistic play: acquisition.

Risk: Game built 94+ months ago; no dev updates in 65+ months means potential compatibility drift and unpatched accessibility issues (player review flags hard-to-read highlights and unmappable controls).
Risk: Heavy concentration in Chinese and Korean markets (60% of review language mix) exposes strategy to regional platform policy changes or currency fluctuations.
Risk: Developer studio appears dormant (no posts in one year, two titles total) raising questions about ongoing support obligations and IP transfer smoothness.

This case as Markdown · Estimates carry ±30-50% error per title.