Quantum Suicide
| App ID | 1020030 |
| App Type | Game |
| Developer | Cotton Candy Cyanide |
| Publisher | Cotton Candy Cyanide |
| Supported Systems | Windows macOS Linux |
| Technologies | PyGame Engine, RenPy Engine |
| Last Changenumber | 30022032 |
| Last Record Update | 12 July 2025 – 01:00:18 UTC ( |
| Release Date | 10 September 2020 – 11:47:49 UTC ( |
Quantum Suicide is a game of betrayal, deception and romance in the cold depths of space.
Steam price history
Current Price
$19.99
Lowest Recorded Price
$9.99 at -50%
7 August 2023
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
$19.99 | $19.99 | $9.99 | $9.99 at -50% | |
 Kazakhstani Tenge |
2650₸ | $4.89 | -75.52% | $2.44 | 1325₸ at -50% |
 Russian Ruble |
435 ₽ | $5.22 | -73.88% | $2.60 | 217 ₽ at -50% |
 Indian Rupee |
₹ 529 | $6.00 | -69.97% | $2.99 | ₹ 264 at -50% |
 Indonesian Rupiah |
Rp 108999 | $6.54 | -67.27% | $3.27 | Rp 54499 at -50% |
 Ukrainian Hryvnia |
279₴ | $6.75 | -66.23% | $3.36 | 139₴ at -50% |
 Vietnamese Dong |
188000₫ | $7.12 | -64.36% | $3.56 | 94000₫ at -50% |
 Brazilian Real |
R$ 37,99 | $7.12 | -64.34% | $3.56 | R$ 18,99 at -50% |
 South African Rand |
R 130.00 | $7.48 | -62.57% | $3.74 | R 65.00 at -50% |
 Philippine Peso |
₱449.95 | $7.88 | -60.57% | $3.94 | ₱224.97 at -50% |
 Colombian Peso |
COL$ 31000 | $7.95 | -60.22% | $3.97 | COL$ 15500 at -50% |
 Chilean Peso |
CLP$ 7700 | $8.06 | -59.64% | $4.03 | CLP$ 3850 at -50% |
 South Asia - USD |
$8.19 | $8.19 | -59.03% | $4.09 | $4.09 at -50% |
 Thai Baht |
฿289.00 | $9.07 | -54.61% | $4.53 | ฿144.50 at -50% |
 Malaysian Ringgit |
RM39.00 | $9.27 | -53.63% | $4.63 | RM19.50 at -50% |
 Saudi Riyal |
34.95 SR | $9.31 | -53.38% | $4.65 | 17.47 SR at -50% |
 Chinese Yuan |
¥ 70 | $9.83 | -50.80% | $4.91 | ¥ 35 at -50% |
 Mexican Peso |
Mex$ 185.99 | $10.10 | -49.43% | $5.05 | Mex$ 92.99 at -50% |
 CIS - U.S. Dollar |
$10.49 | $10.49 | -47.52% | $5.24 | $5.24 at -50% |
 Taiwan Dollar |
NT$ 318 | $10.52 | -47.35% | $5.26 | NT$ 159 at -50% |
 Peruvian Sol |
S/.37.00 | $10.61 | -46.88% | $5.30 | S/.18.50 at -50% |
 Uruguayan Peso |
$U429 | $10.75 | -46.22% | $5.36 | $U214 at -50% |
 Kuwaiti Dinar |
3.35 KD | $10.96 | -45.13% | $5.46 | 1.67 KD at -50% |
 Hong Kong Dollar |
HK$ 89.00 | $11.44 | -42.74% | $5.72 | HK$ 44.50 at -50% |
 Qatari Riyal |
41.99 QR | $11.54 | -42.25% | $5.77 | 20.99 QR at -50% |
 Japanese Yen |
¥ 1999 | $13.52 | -32.36% | $6.75 | ¥ 999 at -50% |
 Singapore Dollar |
S$18.50 | $14.40 | -27.94% | $7.20 | S$9.25 at -50% |
 U.A.E. Dirham |
53.00 AED | $14.43 | -27.81% | $7.21 | 26.50 AED at -50% |
 Norwegian Krone |
145,00 kr | $14.59 | -26.98% | $7.29 | 72,50 kr at -50% |
 New Zealand Dollar |
NZ$ 24.99 | $14.64 | -26.74% | $7.31 | NZ$ 12.49 at -50% |
 South Korean Won |
₩ 20500 | $14.67 | -26.61% | $7.33 | ₩ 10250 at -50% |
 Australian Dollar |
A$ 24.99 | $16.47 | -17.57% | $8.23 | A$ 12.49 at -50% |
 Canadian Dollar |
CDN$ 22.79 | $16.50 | -17.43% | $8.24 | CDN$ 11.39 at -50% |
 Costa Rican Colon |
₡8500 | $16.84 | -15.74% | $8.42 | ₡4250 at -50% |
 Euro |
14,99€ | $17.62 | -11.83% | $8.80 | 7,49€ at -50% |
 Polish Zloty |
71,99zł | $19.85 | -0.70% | $9.92 | 35,99zł at -50% |
 LATAM - U.S. Dollar |
$19.99 | $19.99 | $9.99 | $9.99 at -50% | |
 MENA - U.S. Dollar |
$19.99 | $19.99 | $9.99 | $9.99 at -50% | |
 British Pound |
£14.99 | $20.22 | +1.15% | $10.10 | £7.49 at -50% |
 Israeli New Shekel |
₪73.95 | $22.16 | +10.88% | $11.08 | ₪36.97 at -50% |
 Swiss Franc |
CHF 19.50 | $24.54 | +22.77% | $12.27 | CHF 9.75 at -50% |
Valve suggested prices are shown on package pages.
Price history
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Additional Information
| Developer | Cotton Candy Cyanide | |||||||||||||||||||||||||||
| metacritic_name | Quantum Suicide | |||||||||||||||||||||||||||
| controller_support | full | |||||||||||||||||||||||||||
| community_visible_stats | Yes | |||||||||||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||||||||||
| Publisher | Cotton Candy Cyanide | |||||||||||||||||||||||||||
| eulas |
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| Store Release Date | 10 September 2020 – 07:00:00 UTC ( |
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| osarch | 64 | |||||||||||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||||||||||
| Social Media | https://x.com/CottonCandyCN https://www.youtube.com/cottoncandycyanidecn/ |
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| Primary Genre | Adventure (25) | |||||||||||||||||||||||||||
| Store Genres | Adventure (25), Casual (4), Indie (23) | |||||||||||||||||||||||||||
| Steam Release Date | 10 September 2020 – 11:47:49 UTC ( |
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| Original Release Date | 10 September 2020 – 07:00:00 UTC ( |
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| Store Asset Modification Time | 31 October 2022 – 12:36:15 UTC ( |
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| library_assets |
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| osextended | macos64 | |||||||||||||||||||||||||||
| review_score | 6 | |||||||||||||||||||||||||||
| review_percentage | 78 | |||||||||||||||||||||||||||
| Detected Technologies (?) | PyGame Engine, RenPy Engine, Python SDK, SDL SDK | |||||||||||||||||||||||||||
| Steam Deck Compatibility |
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| Content Descriptors | Some Nudity or Sexual Content (1), Frequent Violence or Gore (2), General Mature Content (5) | |||||||||||||||||||||||||||
| First seen on SteamDB | 22 January 2019 – 06:34:43 UTC ( |
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| Content Descriptors (Including DLC) | Some Nudity or Sexual Content (1), Frequent Violence or Gore (2), General Mature Content (5) | |||||||||||||||||||||||||||
Supported Languages
| 2 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| Japanese | Yes | Yes | Yes |
