Do I ship it?

GamesCo-opCo-op + Tower Defense

Specimen · observed

Should I ship a Co-op Tower Defense?

Co-op + Tower Defense

Of 62 developers who shipped a Co-op Tower Defense in the last 2 years: 3 in 10 made under est. revenue: est. copies × today's US list price; gross, before Steam's cut, taxes and refunds. See method., the middle one made est. revenue: est. copies × today's US list price; gross, before Steam's cut, taxes and refunds. See method., 1 in 4 cleared est. revenue: est. copies × today's US list price; gross, before Steam's cut, taxes and refunds. See method., 1 in 20 cleared est. revenue: est. copies × today's US list price; gross, before Steam's cut, taxes and refunds. See method.. 128 more are announced, ×3.5 for every developer who shipped in the last year.

Verdict: poor odds, for a 7 / 10 build.

The middle developer here made $3.4k, ×2.2 the market's $1.5k for a 7 / 10 build, and 3 in 10 made under $480; 1 in 20 cleared $3.6M, ×2434 the market median. Revenue is down 50% on the market; 128 games are announced against 37 developers who shipped in the last year.

Deciding numbers: median 2.2 times the market baseline, revenue down 50% on the market, 128 announced, ×3.5 per developer who shipped in the last year.
Nobody has said they are building this yet.
Co-op + Tower Defense
Fig. 1 · this niche among 16,100
Plate 1 · outcomes, 2 yr n = 62
Median est. gross by half-year cohort, 2023 H1 to 2026 H2: $30k → $840 → $5.6k → $9.6k → $5.8k → $3.6k (still earning) → $210 (still earning)
The last cohort is still earning.
Outcomes for Co-op + Tower Defense: Plate 1 · outcomes, 2 yr, n = 62
Bottom 30% $479 (exactly $479)
Median $3.4k (exactly $3,356)
Top 25% $33k (exactly $32,667)
Top 5% $3.6M (exactly $3,646,484)
Developers, 2 yr 62
Released games 257
Announced 128
Effort 7 / 10
AI-buildability Low
Typical price $9.99

momentum: how a niche's revenue percentiles and developer count moved between two equal, adjacent periods, divided by the market's own move. See method., 12 months: revenue down 50% on the market, supply 40% more developers than the period before.

Free games: 18%, excluded from money figures.

See every window in the explorer →

Plate 2 · systems and tooling

Can AI deliver it?

AI-buildability for this niche is low: the lowest rating among its tags.

Co-op
effort 7 / 10 · low · co-op on Steam means online sessions and drop-in sync
Tower Defense
effort 3 / 10 · high · effort 3 sits in the high band

How the rubric works →

Plate 3 · the cost side

What it takes

Effort
7 / 10 · big single-player or serious online
Systems
Co-op, Tower Defense; 6 in 10 of the top 25% also carry Online Co-Op, Action, Strategy
Price point
$9.99 typical · top 25% priced $19.99 or above
Art
4 in 10 of the top 25% ship with 3D
Plate 4 · demand

Why players buy here

The top 25% priced at $19.99 or above; the middle game at $9.99.

The top 10 games average 70% positive over 35,099 reviews.

Plate 5 · the loss side

What kills games here

Developer outcomes in the last 2 years by share: 3 in 10 under $480, median $3.4k, 1 in 4 over $32k, 1 in 20 over $3.6M.

3 in 10 developers made under $480. 7 in 10 of the 32 games released 1 to 2 years ago have fewer than 100 reviews. 128 games are announced against 37 developers who shipped in the last year, ×3.5 per shipper.

Plate 6 · same mechanic, other settings

Adjacent niches

Co-op with a different second tag, ranked by verdict then median.

  1. + SuperheroFair9 devs · median $11k · 17 announced
  2. + Boomer ShooterFair16 devs · median $6.9k · 24 announced
  3. + GamblingFair22 devs · median $4.4k · 32 announced
  4. + NinjaFair13 devs · median $4.2k · 13 announced
  5. + TypingLong shot16 devs · median $810 · 13 announced
  6. + Word GameLong shot23 devs · median $267 · 23 announced
  7. + Open World Survival CraftPoor odds58 devs · median $515k · 127 announced
  8. + World War IIPoor odds12 devs · median $372k · 23 announced
  9. + AutomationPoor odds48 devs · median $369k · 110 announced
  10. + TransportationPoor odds17 devs · median $369k · 25 announced
  11. + JRPGPoor odds15 devs · median $164k · 19 announced
  12. + Turn-BasedPoor odds12 devs · median $131k · 19 announced

All 230 pairs on the Co-op page

Plate 7 · comparable specimens, by est. revenue

Comparable games

Capsule Game Released Price Reviews Est. copies Est. revenue Developer
Total War: WARHAMMER III older $59.99 104,822 71% 3.1M $189M (exactly $188,648,153) CREATIVE ASSEMBLY, Feral Interactive
Bloons TD 6 older $13.99 349,859 97% 10M $147M (exactly $146,835,822) Ninja Kiwi
Kingdom Two Crowns older $19.99 31,259 90% 938k $19M (exactly $18,746,022) Fury Studios, Coatsink
Plants vs. Zombies: Battle for Neighborville™ older $29.99 15,372 71% 461k $14M (exactly $13,830,188) PopCap
Orcs Must Die! 3 older $29.99 10,930 85% 328k $9.8M (exactly $9,833,721) Robot Entertainment
Legion TD 2 - Multiplayer Tower Defense older $24.99 12,607 86% 378k $9.5M (exactly $9,451,468) AutoAttack Games
Outpost: Infinity Siege older $24.99 11,636 65% 349k $8.7M (exactly $8,723,509) Team Ranger
Age of Darkness: Final Stand $27.99 9,486 74% 285k $8.0M (exactly $7,965,394) PlaySide
Mindustry older $9.99 24,608 95% 738k $7.4M (exactly $7,375,018) AnukenDev
Orcs Must Die! 2 older $14.99 12,924 92% 388k $5.8M (exactly $5,811,923) Robot Entertainment
The Front $19.99 9,555 66% 287k $5.7M (exactly $5,730,134) Samar Studio
Plants vs. Zombies™: Replanted $19.99 6,898 66% 207k $4.1M (exactly $4,136,731) PopCap Games, The Lost Pixels
Orcs Must Die! Deathtrap $29.99 4,053 69% 122k $3.6M (exactly $3,646,484) Robot Entertainment
EverSiege: Untold Ages $19.99 1,906 68% 57k $1.1M (exactly $1,143,028) Tindalos Interactive
Axon TD: Uprising - Tower Defense $19.99 706 85% 21k $423k (exactly $423,388) Element Studios
Survival Machine $19.99 692 69% 21k $415k (exactly $414,992) Grape Pickers
Sineus Arena Survivors $10.99 1,150 77% 35k $379k (exactly $379,155) Sineus Games
TDS - Tower Defense Strategy $17.99 315 81% 9.5k $170k (exactly $170,005) Blockage
Hold The Mine · EA $14.99 338 83% 10k $152k (exactly $151,999) Hookaria Games

Estimates: copies = reviews × 30, gross = copies × list price.