# Romance of the Three Kingdoms XIII

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

- Steam appid: 363150
- Developer: KOEI TECMO GAMES CO., LTD.
- Released: 2016 · Genre: Simulation · List price: $59.99
- Deal grade: A (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $4.3k to $6.4k per month (mid $5.4k)
- Opportunity score: $11.3k/month at x2.10 dormancy multiplier
- Est. lifetime owners: 378.0k · Est. lifetime net revenue: $4.9M
- Review sentiment: 58% positive across 7608 reviews (5816 from Steam purchases)
- Review velocity: 16.7 reviews/month (6-month average)

## Why it's flagged

- Developer silent for 6.6 years
- Studio active elsewhere (76 titles tracked), so this one may welcome a partner
- Last build shipped 6.6 years ago
- Store page localized in only 4 language(s)
- Last discounted 0 months ago, 7 sales in the last 12 months
- Proven demand elasticity: x1.3 review velocity during past deep sales

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $9.8k |
| After VAT / sales tax (-13% blended) | $8.5k |
| After refunds (-9.5% median) | $7.7k |
| Net to developer (after Steam 30%) | $5.4k |

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

23, 26, 54, 29, 20, 27, 19, 20, 14, 27, 22, 16, 8, 17, 25, 23, 20, 10, 22, 16, 13, 12, 15, 22

## Estimated acquisition range

$128.9k to $257.9k (2-4x the trailing net annuity of $64.5k/year). Same error range applies.

## Analyst notes (AI-assisted)

A 2016 grand-strategy simulation of the Three Kingdoms era, blending turn-based diplomacy, military campaigns and character management across a massive map.

ROTK XIII generates $5.4k/mo in residual revenue and sits at 58% positive reviews, placing it in the steady-but-quiet tier of Koei Tecmo's historical-sim catalog. The title has not moved price (0.31 months since last discount) and still carries a $59.99 tag despite the 1.29 demand elasticity; a strategic discount from the established 70% ceiling could unlock near-term margin recovery. Acquisition is not realistic (owned outright by Koei Tecmo), but a publishing partner or revival studio should evaluate whether a sequel pitch, DLC campaign or modernized UI overhaul could reset the title's seven-year refresh cycle.

- Most realistic play: watch
- Risk (market): The grand-strategy sim niche is saturated; ROTK XIV (2020) and XV (2024) exist, and newer entries likely cannibalize this SKU's discoverability.
- Risk (tech): 79 months in production, no developer communication in 79 months; engine and UI conventions may feel dated to players accustomed to newer Paradox or Total War releases.
- Risk (other): Mixed sentiment (58% positive) and low monthly reviews (16.7 per month) suggest a playerbase that has stabilized but not grown; churn risk if a major franchise update drops elsewhere.

Suggested first moves:
1. Audit Koei Tecmo's post-2016 strategic-simulation roadmap: confirm whether ROTK XIII is intentionally dormant, sunset, or held for eventual bundle/legacy pricing.
2. Model a short promotional discount window (20-40% off peak, timed to Three Kingdoms media moments or strategy-game sales events) to test elasticity (1.29) and measure uplift in residual_mid_usd.
3. If Koei Tecmo considers a revival, commission a lightweight UI/UX audit to identify the lowest-cost quality-of-life improvements (tutorials, accessibility, modern launcher integration) that could reset player acquisition.

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/363150
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.