Do I ship it?

GamesSandboxSandbox + Trains

Specimen · observed

Should I ship a Train Sandbox?

Sandbox + Trains

Of 40 developers who shipped a Train Sandbox 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.. 46 more are announced.

Verdict: poor odds, for a 6 / 10 build.

The middle developer here made $43k, ×69 the market's $630 for a 6 / 10 build, and 3 in 10 made under $9.4k; 1 in 20 cleared $4.8M, ×7751 the market median. Revenue is down 40% on the market; 46 games are announced against 24 developers who shipped in the last year.

Deciding numbers: median 68.8 times the market baseline, revenue down 40% on the market, 46 announced, ×1.9 per developer who shipped in the last year.
Nobody has said they are building this yet.
Sandbox + Trains
Fig. 1 · this niche among 16,100
Plate 1 · outcomes, 2 yr n = 40
Median est. gross by half-year cohort, 2023 H1 to 2026 H2: $10k → $1.1M → $1.1M → $148k → $56k → $6.8k → $137k (still earning) → $11k (still earning)
The last cohort is still earning.
Outcomes for Sandbox + Trains: Plate 1 · outcomes, 2 yr, n = 40
Bottom 30% $9.4k (exactly $9,352)
Median $43k (exactly $43,189)
Top 25% $255k (exactly $255,226)
Top 5% $4.9M (exactly $4,867,377)
Developers, 2 yr 40
Released games 126
Announced 46
Effort 6 / 10
AI-buildability Medium
Typical price $14.99

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 40% on the market, supply 40% more developers than the period before.

Free games: 6%, 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 medium: the lowest rating among its tags.

Sandbox
effort 6 / 10 · medium · effort 6 sits in the medium band
Trains
effort 5 / 10 · medium · effort 5 sits in the medium band

How the rubric works →

Plate 3 · the cost side

What it takes

Effort
6 / 10 · full 3D single-player, physics sims, content-heavy RPG
Systems
Sandbox; 7 in 10 of the top 25% also carry Building, Open World, Simulation
Price point
$14.99 typical · top 25% priced $39.99 or above
Art
6 in 10 of the top 25% ship with 3D, First-Person
Plate 4 · demand

Why players buy here

The top 25% priced at $39.99 or above; the middle game at $14.99.

The top 10 games average 78% positive over 22,487 reviews.

Plate 5 · the loss side

What kills games here

Developer outcomes in the last 2 years by share: 3 in 10 under $9.4k, median $43k, 1 in 4 over $250k, 1 in 20 over $4.8M.

3 in 10 developers made under $9.4k. 4 in 10 of the 18 games released 1 to 2 years ago have fewer than 100 reviews. 46 games are announced against 24 developers who shipped in the last year.

Plate 6 · same mechanic, other settings

Adjacent niches

Sandbox with a different setting or mood, ranked by verdict then median.

  1. + FightingStrong odds11 devs · median $76k · 8 announced
  2. + Turn-BasedFair20 devs · median $224k · 19 announced
  3. + World War IIFair14 devs · median $146k · 13 announced
  4. + MinigamesFair9 devs · median $17k · 12 announced
  5. + ProgrammingFair60 devs · median $7.0k · 71 announced
  6. + CatsFair63 devs · median $4.8k · 74 announced
  7. + SportsFair83 devs · median $4.2k · 103 announced
  8. + GamblingFair25 devs · median $2.5k · 31 announced
  9. + Auto BattlerFair45 devs · median $1.9k · 42 announced
  10. + Combat RacingFair21 devs · median $1.8k · 26 announced
  11. + Trading Card GameFair17 devs · median $1.8k · 17 announced
  12. + IdlerFair258 devs · median $1.2k · 306 announced

All 233 pairs on the Sandbox page

Plate 7 · comparable specimens, by est. revenue

Comparable games

Capsule Game Released Price Reviews Est. copies Est. revenue Developer
Factorio older $35.00 191,814 97% 5.8M $201M (exactly $201,404,700) Wube Software LTD.
Stormworks: Build and Rescue older $24.99 54,649 90% 1.6M $41M (exactly $40,970,355) Geometa
Transport Fever 2 older $39.99 26,714 89% 801k $32M (exactly $32,048,786) Urban Games
Train Simulator Classic older $29.99 19,461 73% 584k $18M (exactly $17,509,062) Dovetail Games
Derail Valley · EA older $39.99 9,442 96% 283k $11M (exactly $11,327,567) Altfuture
Transport Fever older $29.99 9,278 82% 278k $8.3M (exactly $8,347,417) Urban Games
Voidtrain $29.99 8,713 73% 261k $7.8M (exactly $7,839,086) HypeTrain Digital
Railway Empire older $29.99 7,219 82% 217k $6.5M (exactly $6,494,934) Gaming Minds Studios
Railroads Online $29.99 5,410 75% 162k $4.9M (exactly $4,867,377) Stefan Kelnberger
Trainz Railroad Simulator 2019 older $39.99 2,624 77% 79k $3.1M (exactly $3,148,013) N3V Games
Plan B: Terraform $15.99 3,526 91% 106k $1.7M (exactly $1,691,422) Gaddy Games
Oddsparks: An Automation Adventure $29.99 1,867 82% 56k $1.7M (exactly $1,679,740) Massive Miniteam
City Transport Simulator 2026 - Bus & Tram $39.99 526 73% 16k $631k (exactly $631,042) ViewApp
Subway Builder $39.99 394 59% 12k $473k (exactly $472,682) Colin Miller, EJ Fox, Curran Kelleher,… (Colin Miller, EJ Fox, Curran Kelleher, Nate Maue, Alex Wohlbruck, Piero Maddaleni, Brooks Flannery)
Railroad Corporation 2 $39.99 376 69% 11k $451k (exactly $451,087) Corbie Games
OxyRail · EA $14.99 949 80% 28k $427k (exactly $426,765) OxygenTech Limited
Train Sim World® 7 $49.99 278 74% 8.3k $417k (exactly $416,917) Dovetail Games
Back in Service: a Metro Driver · EA $18.99 448 97% 13k $255k (exactly $255,226) Dominik Vojta

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