# Styx: Master of Shadows

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

- Steam appid: 242640
- Developer: Cyanide Studio
- Released: 2014 · Genre: Action · List price: $19.99
- Deal grade: A (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $5.9k to $8.8k per month (mid $7.3k)
- Opportunity score: $11.0k/month at x1.50 dormancy multiplier
- Est. lifetime owners: 721.7k · Est. lifetime net revenue: $3.1M
- Review sentiment: 83% positive across 11687 reviews (9623 from Steam purchases)
- Review velocity: 68.2 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 5 months ago
- Studio active elsewhere (12 titles tracked), so this one may welcome a partner
- Last build shipped 11.9 years ago
- Last discounted 0 months ago, 10 sales in the last 12 months
- Proven demand elasticity: x1.4 review velocity during past deep sales

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $13.3k |
| After VAT / sales tax (-13% blended) | $11.6k |
| After refunds (-9.5% median) | $10.5k |
| Net to developer (after Steam 30%) | $7.3k |

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

104, 67, 48, 71, 42, 47, 32, 93, 58, 90, 103, 95, 73, 81, 60, 63, 66, 116, 87, 123, 48, 66, 47, 38

## Estimated acquisition range

$175.7k to $351.5k (2-4x the trailing net annuity of $87.9k/year). Same error range applies.

## Analyst notes (AI-assisted)

Styx: Master of Shadows is a first-person stealth-sandbox game where players control a goblin assassin infiltrating a massive fortress across interlocking missions.

This 2014 Cyanide title has generated $3.1M lifetime with 721k units sold and maintains strong sentiment (83% positive, 68 reviews/mo average). The game sits quietly profitable at $7.3k/mo residual revenue with near-zero developer marketing activity in five months, suggesting IP and franchise potential (a sequel exists) are underexploited. Acquisition or publishing revival could activate the dormant Styx brand; licensing the franchise to a larger publisher deserves exploration.

- Most realistic play: licensing
- Risk (market): Stealth-sandbox niche is competitive (Dishonored, Splinter Cell, modern MGS); repositioning against established AAA franchises requires clear differentiation.
- Risk (tech): Player feedback flags repetitive level design, asset reuse, and jank accumulated over ten years; modernization cost unclear.
- Risk (other): Cyanide Studio (8 titles, operating status) has not posted publicly in 4.8 months; ownership structure and IP custody require clarification.

What players are asking for:
- Mission challenge variety and synergy beyond repeating the same stealth pattern per level
- Confirmation that a third Styx title or remaster exists and when it will ship
- Updated graphics and performance for modern systems without losing the deliberate, methodical stealth pacing

Suggested first moves:
1. Confirm IP ownership with Cyanide Studio and map publishing rights to any sequel or ancillary content; establish if a 'third' Styx title is greenlit or shelved.
2. Conduct focused player survey on willingness to pay for a remaster (engine refresh, modern UI, QoL) vs. new entry; stealth-sandbox audience often values iteration over reinvention.
3. Evaluate acquisition of the IP and back catalog (8 Cyanide titles) as a portfolio play; Styx brand recognition and 83% sentiment provide foundation for publishing deal or internal studio absorption.

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/242640
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.