The Game Census
Trials of interspecies Sisters~Erotic exchange with Humans~ cover art

Trials of interspecies Sisters~Erotic exchange with Humans~

瀧壺チャンネル · 072 Project · 2025-08-15

Steam

CasualIndieRPG

After the war, in order to resolve the conflicts between races, nuns from the nonhuman races were sent to human territories for cultural exchange. However, what awaited them there was a road of no return leading to decadence——

Trials of interspecies Sisters~Erotic exchange with Humans~ is a 2025 Casual, Indie, and RPG title priced at $15.99, with a Very Positive review sentiment (83% of 132 reviews).— census verdict as of 2026-09-20

83%
positive of 132 reviews
Very Positive
steam's rating (official)
$15.99
steam price (US)

Health check

Quiet
  • · 8 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 27% vs the prior 8 weeks.
  • · Current weekly pace is under 5% of the all-time peak week (69 reviews).
  • · Top 27% of 29,032 Casual games in the census by review count.
Estimated sales: 2.6k–5.9k copies

Review-multiple estimate from 132 total reviews — how this is computed.

All-time low: $12.79 at Steam (2025-09-29)via IsThereAnyDeal

12-month high $15.99 · on sale 8 of 16 observed days (census price snapshots)

Review momentum

PositiveNegative
626220252026Week of 2025-08-15: 62 positiveWeek of 2025-08-15: 7 negativeWeek of 2025-08-22: 3 positiveWeek of 2025-08-22: 1 negativeWeek of 2025-08-29: 2 positiveWeek of 2025-09-05: 1 positiveWeek of 2025-09-05: 1 negativeWeek of 2025-09-12: 1 negativeWeek of 2025-09-26: 1 positiveWeek of 2025-10-03: 3 negativeWeek of 2025-10-24: 1 negativeWeek of 2025-11-07: 1 positiveWeek of 2025-11-28: 1 positiveWeek of 2025-12-12: 1 positiveWeek of 2025-12-19: 2 negativeWeek of 2026-01-16: 1 positiveWeek of 2026-02-13: 1 negativeWeek of 2026-02-20: 1 negativeWeek of 2026-03-06: 1 negativeWeek of 2026-05-15: 1 negativeWeek of 2026-05-29: 1 positiveWeek of 2026-06-12: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Price history

$15.99$12.792025-08-152026-08-102025-08-15 — best price $14.392025-08-29 — best price $15.992025-09-29 — best price $12.792025-10-13 — best price $15.992025-11-17 — best price $12.792025-11-24 — best price $15.992025-12-18 — best price $12.792026-01-12 — best price $15.992026-02-16 — best price $12.792026-02-23 — best price $15.992026-03-19 — best price $12.792026-03-26 — best price $15.992026-04-27 — best price $12.792026-05-04 — best price $15.992026-06-08 — best price $12.792026-06-15 — best price $15.992026-06-25 — best price $12.792026-07-09 — best price $15.992026-08-03 — best price $12.792026-08-10 — best price $15.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

5
achievements tracked
69.8%
earned "Talk and Trial"
35.5%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerSteam AchievementsSteam CloudFamily Sharing

4 supported languages: Japanese, English, Simplified Chinese, Traditional Chinese

Census log

Computed from census-recorded observations only — dates are observation dates.

Recent updates