My Best Friend's Sister
Naughty Sister · 2026-01-09
Steam
AdventureCasualRPGSimulation
Modes: Single player
Releases: Jan 09, 2026 (PC (Microsoft Windows)), Jan 09, 2026 (Mac), Jan 09, 2026 (Linux)
A night at your best friend’s house turns into a tempting choice between desire and restraint.
71%
positive of 459 reviews
Mostly Positive
steam rating
Health check
Quietly active
- · 32 reviews in the last 8 weeks (~4/week).
- · Review velocity down 30% vs the prior 8 weeks.
- · Current weekly pace is under 5% of the all-time peak week (158 reviews).
- · Top 38% of 13,205 Adventure games in the census by review count.
Estimated sales: 9.2k–21k copies
Review-multiple estimate from 459 total reviews — how this is computed.
Current store prices
| lowest across shops (ITAD) | $5.84 | -55% |
Deal snapshots via CheapShark, refreshed daily.
All-time low: $5.84 at Steam (2026-08-27)via IsThereAnyDeal
12-month high $12.99 · on sale 8 of 15 observed days (census price snapshots)
Review momentum
PositiveNegative
Weekly review counts (Steam review histogram). Positive above the line, negative below.Price history
Lowest recorded price across tracked stores, per day (census snapshots).Completion
92.4%
earned "For the sake of her smile, I am ready to never close my eyes."
55.5%
median achievement earned by
- · 92.4% of players earned For the sake of her smile, I am ready to never close my eyes.
- · 55.5% of players earned Love that is hidden from everyone.
- · 15.5% of players earned It's not me twitching! It's the screen!
Global achievement rates from Steam.
Details
WindowsmacOSLinuxFull controller supportSingle-playerSteam AchievementsFull controller supportSteam Trading CardsCustom Volume ControlsMouse Only OptionPlayable without Timed InputSave AnytimeFamily Sharing
15 supported languages: English, French, Italian, German, Spanish - Spain, Spanish - Latin America, Traditional Chinese, Simplified Chinese, Korean, Dutch, Polish, Portuguese - Brazil…
Console footprint
| Platform | Players tracked | Completion | Trophies/achievements |
|---|
| Steam (Steam) | 56 | 45% | 12 |
Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.
Census log
- 2026-01-09First review activity on record (week of 2026-01-09).
- 2026-01-09Biggest review week on record: 158 reviews (week of 2026-01-09).
Computed from census-recorded observations only — dates are observation dates.