# CRYSTAR

> ResidualPlay case file: an overlooked Steam game still earning residual revenue. Estimates carry a ±30-50% error range per title.

- Steam appid: 981750
- Developer: FURYU CORPORATION
- Released: 2019 · Genre: Action · List price: $19.99
- Deal grade: A (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $2.9k to $4.3k per month (mid $3.6k)
- Opportunity score: $5.4k/month at x1.50 dormancy multiplier
- Est. lifetime owners: 55.3k · Est. lifetime net revenue: $237.7k
- Review sentiment: 76% positive across 1443 reviews (1383 from Steam purchases)
- Review velocity: 33.3 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 1 months ago
- Studio active elsewhere (11 titles tracked), so this one may welcome a partner
- Last build shipped 6.9 years ago
- Store page localized in only 4 language(s)
- Last discounted 0 months ago, 10 sales in the last 12 months

## Where a gross dollar goes (monthly, at current velocity)

| Stage | USD/month |
|---|---|
| Gross storefront sales | $6.5k |
| After VAT / sales tax (-13% blended) | $5.7k |
| After refunds (-9.5% median) | $5.1k |
| Net to developer (after Steam 30%) | $3.6k |

## Monthly review counts, oldest to newest (24 months)

6, 11, 6, 6, 6, 8, 5, 16, 9, 8, 9, 8, 6, 7, 10, 9, 5, 14, 4, 5, 43, 83, 37, 28

## Estimated acquisition range

$85.9k to $171.9k (2-4x the trailing net annuity of $43.0k/year). Same error range applies.

## Analyst notes (AI-assisted)

Crystar is a 2019 action-RPG where players control teenage girls with Stand-like powers, leveling them up by crying to purify corrupted loot in a Madoka Magica-inspired supernatural setting.

Crystar sits in a narrow niche: a profitable but quiet action-RPG that has generated $237.7k lifetime on 55k units and still earns $3.6k/mo in residual revenue. The 76% positive rating and passionate player base (Madoka/Stand fan crossover) suggest a cult following rather than mainstream fatigue. Revival or publishing-adjacent play could work if paired with targeted anime/JRPG audiences, but the game's niche aesthetic and repetitive combat limit broad-market appeal.

- Most realistic play: watch
- Risk (market): Combat repetitiveness and grindiness are cited repeatedly in reviews; core loop may not sustain new player retention at scale.
- Risk (other): Potential sensitivity concerns around sexualization of minor-coded characters flagged by at least one reviewer; content moderation risk in certain markets.
- Risk (tech): Four-year-old engine and assets; localization quality issues noted in English text, suggesting tight original budget.

What players are asking for:
- Quality-of-life improvements to reduce grinding (dungeon variety, faster combat loops)
- English localization polish and voice acting consistency
- Additional story content and hidden lore tied to post-game True End
- Combat overhaul to make encounters less repetitive

Suggested first moves:
1. Audit remaining IP and contractual freedom: confirm Furyu owns all assets outright and no anime/music licensing expires soon.
2. Model revival ROI for a small combat/grinding QoL pass targeting anime/JRPG subreddits and YouTube influencers in that space; $3.6k/mo baseline suggests break-even threshold is low.
3. If acquisition-curious, request detailed sales breakdown by region and bundle/sale type; 4% key-share suggests heavy regional key distribution that may limit upside without publisher reset.

Generated 2026-08-20 from public signals and player reviews. Directional, not diligence.

## Methodology

Units are estimated from Steam-purchase reviews times a release-cohort multiplier (Boxleiter method, 20-75x by year). Revenue uses an effective price (lifetime discounts and regional pricing) and nets out VAT (~13%), refunds (~9.5%) and Steam's 30% cut: roughly 55% of gross reaches the developer.

Source: https://residualplay.com/game/981750
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.