Zup! S

Quiet River · 2018 · $1.99 · Casual · deal grade B

• Estimated net residual revenue: $1.2k to $1.8k per month
• Opportunity: $2.2k per month at x1.50 dormancy
• Estimated lifetime owners: 754.9k
• 97%% positive across 16137 reviews · 139.0 reviews/month

Why it's flagged

• Developer active, last post 7 months ago
• Studio active elsewhere (26 titles tracked), so this one may welcome a partner
• Last build shipped 7.2 years ago
• Last discounted 0 months ago, 6 sales in the last 12 months
• Proven demand elasticity: x1.3 review velocity during past deep sales

Analyst notes (AI-assisted)

Zup! S is a minimalist physics puzzle game monetized primarily through Steam achievement customization cosmetics.

Zup! S generates $1,486/mo residual revenue on a seven-year-old title with 96.8% positive sentiment and a tight, achievement-driven monetization loop. The game has found stable product-market fit within a niche audience that values profile decoration and completion incentives over gameplay depth. For a publisher seeking low-risk, high-margin catalog holdings or a studio looking to clone or extend the achievement-farming model, this title demonstrates repeatable mechanics and recurring transaction pull. Most realistic play: watch.

• Risk: Revenue heavily concentrated in achievement cosmetics and profile decoration, which depends on sustained Steam community interest in profile customization features.
• Risk: Developer silent for 6.6 months; no active post-launch support or roadmap signals, suggesting low operational cost but also no growth momentum.
• Risk: Single-play physics puzzle titles have minimal network effects or retention loops beyond cosmetic goals; vulnerable to one-time purchase fatigue.

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