Do I ship it?

GamesSandboxSandbox + Mystery

Specimen · observed

Should I ship a Mystery Sandbox?

Sandbox + Mystery

Of 76 developers who shipped a Mystery 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.. 197 more are announced, ×4.4 for every developer who shipped in the last year.

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

The middle developer here made $2.2k, ×3.4 the market's $630 for a 6 / 10 build, and 3 in 10 made under $450; 1 in 20 cleared $2.7M, ×4407 the market median. Revenue is down 20% on the market; 197 games are announced against 45 developers who shipped in the last year.

Deciding numbers: median 3.4 times the market baseline, revenue down 20% on the market, 197 announced, ×4.4 per developer who shipped in the last year.
Nobody has said they are building this yet.
Sandbox + Mystery
Fig. 1 · this niche among 16,100
Plate 1 · outcomes, 2 yr n = 76
Median est. gross by half-year cohort, 2023 H1 to 2026 H2: $2.2k → $2.7k → $416 → $2.4k → $3.0k → $1.3k → $6.3k (still earning) → $2.5k (still earning)
The last cohort is still earning.
Outcomes for Sandbox + Mystery: Plate 1 · outcomes, 2 yr, n = 76
Bottom 30% $449 (exactly $449)
Median $2.2k (exactly $2,155)
Top 25% $46k (exactly $46,481)
Top 5% $2.8M (exactly $2,767,477)
Developers, 2 yr 76
Released games 182
Announced 197
Effort 6 / 10
AI-buildability Medium
Typical price $6.99

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 20% on the market, supply 45% more developers than the period before.

Free games: 13%, 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
Mystery
effort 3 / 10 · high · effort 3 sits in the high 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; 5 in 10 of the top 25% also carry Exploration, Adventure, Crafting
Price point
$6.99 typical · top 25% priced $24.99 or above
Art
4 in 10 of the top 25% ship with Atmospheric, First-Person, 3D
Plate 4 · demand

Why players buy here

The top 25% priced at $24.99 or above; the middle game at $6.99.

The top 10 games average 90% positive over 66,980 reviews.

Plate 5 · the loss side

What kills games here

Developer outcomes in the last 2 years by share: 3 in 10 under $450, median $2.2k, 1 in 4 over $46k, 1 in 20 over $2.7M.

3 in 10 developers made under $450. 7 in 10 of the 37 games released 1 to 2 years ago have fewer than 100 reviews. 197 games are announced against 45 developers who shipped in the last year, ×4.4 per shipper.

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
Graveyard Keeper older $19.99 39,547 86% 1.2M $24M (exactly $23,716,336) Lazy Bear Games
Big Walk $19.99 32,470 95% 974k $19M (exactly $19,472,259) House House
The Wild Eight older $24.99 6,646 69% 199k $5.0M (exactly $4,982,506) Eight Points
ATOM RPG: Post-apocalyptic indie game older $14.99 9,991 84% 300k $4.5M (exactly $4,492,953) AtomTeam
Len's Island $24.99 5,935 82% 178k $4.4M (exactly $4,449,470) Flow Studio
Storyteller older $14.99 8,169 88% 245k $3.7M (exactly $3,673,599) Daniel Benmergui
Caribbean Legend older $39.99 2,860 74% 86k $3.4M (exactly $3,431,142) BlackMark Studio
A Game About Digging A Hole™ $4.99 18,785 89% 564k $2.8M (exactly $2,812,114) DoubleBee
Techtonica $29.99 3,076 64% 92k $2.8M (exactly $2,767,477) Fire Hose Games
The Solus Project older $19.99 2,471 79% 74k $1.5M (exactly $1,481,859) Hourences, Grip Games
Welcome to Elderfield $17.99 1,334 87% 40k $720k (exactly $719,960) Chris Cote
The Spotter: Dig or Die $12.99 1,792 84% 54k $698k (exactly $698,342) Puppyroar Games
Caribbean Legend: Age of Pirates $19.99 638 70% 19k $383k (exactly $382,609) ReCon Team
Meltopia $6.99 1,679 85% 50k $352k (exactly $352,086) Garden of Dreams
Island Notes $12.99 884 82% 27k $344k (exactly $344,495) KangBaoGame
Midnight Sin $19.99 387 82% 12k $232k (exactly $232,084) Faerin Games

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