# Rock 'N' Roll Defense

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

- Steam appid: 438480
- Developer: NukGames
- Released: 2016 · Genre: Action · List price: $4.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $2.8k to $4.1k per month (mid $3.4k)
- Opportunity score: $4.5k/month at x1.30 dormancy multiplier
- Est. lifetime owners: 236.3k · Est. lifetime net revenue: $253.4k
- Review sentiment: 87% positive across 3958 reviews (3635 from Steam purchases)
- Review velocity: 128.5 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 4 months ago
- Studio active elsewhere (8 titles tracked), so this one may welcome a partner
- Last build shipped 28 months ago
- Last discounted 0 months ago, 11 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $6.3k |
| After VAT / sales tax (-13% blended) | $5.4k |
| After refunds (-9.5% median) | $4.9k |
| Net to developer (after Steam 30%) | $3.4k |

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

18, 23, 18, 22, 40, 34, 25, 36, 28, 23, 39, 64, 27, 44, 169, 48, 92, 72, 44, 94, 213, 203, 165, 52

## Estimated acquisition range

$82.7k to $165.4k (2-4x the trailing net annuity of $41.3k/year). Same error range applies.

## Analyst notes (AI-assisted)

Rock 'N' Roll Defense is a tower defense strategy game with a heavy metal aesthetic and licensed soundtrack.

This 2016 indie TD title has achieved $253k net lifetime revenue on 236k units with a solid 87% positive rating and 128.5 reviews/mo, generating $3.4k/mo residual. The game is mechanically safe but benefits from strong thematic cohesion, accessible 4-5 hour campaign, and a small but genuinely attached community. It remains modestly profitable at $0.49 after 90% discount; modest acquisition cost and low dev overhead make this a clean catalog filler for publishers seeking backlist diversification or platform expansion, though growth ceiling is capped by limited mechanical depth and narrow genre appeal.

- Most realistic play: acquisition
- Risk (market): Tower defense genre saw peak interest 2012-2016; this title has already extracted most of its addressable audience over 8 years.
- Risk (tech): 28 months since last build suggests aging codebase; modernization for console or mobile ports would require investment beyond current residual.
- Risk (other): Developer last posted 3.8 months ago; active but low-intensity support means bug fixes or platform compliance updates fall to new owner.

What players are asking for:
- Better or remappable controls (noted in multiple reviews as 'annoying')
- Mobile or console port to reach casual/handheld audiences
- Cosmetic/cosmetics DLC or cosmetic tower skins to extend engagement

Suggested first moves:
1. Audit music/soundtrack licensing terms: confirm perpetual rights or renewal costs, as sonic identity is the primary differentiator.
2. Light UX refresh (control remapping, UI scaling) targeting existing wishlists and regional markets (13 languages tracked, 8% key reseller share suggests emerging-market traction).
3. Test mobile (iOS/Android) or Nintendo Switch port in soft launch; 3.4k/mo residual on PC alone could scale 2-3x with minimal porting risk given simplicity of TD mechanics.

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/438480
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.