Mast Up! Seas of Desire
| App ID | 2515930 |
| App Type | Game |
| Developer | Kopon Games |
| Publisher | Kopon Games |
| Franchise | Kopon Hentai |
| Supported Systems | Windows macOS Linux |
| Technologies | Unity Engine |
| Last Changenumber | 28850405 |
| Last Record Update | 6 May 2025 – 22:33:55 UTC ( |
| Release Date | 5 February 2025 – 10:39:52 UTC ( |
Set sail on a lewd and adventurous journey with MastUp! Seas of Desire! This hentai nautical game blends strategic navigation, romance, and mythological waifus in a high-seas quest full of passion and peril to find Cipangu.
Steam price history
Week Long Deal, offer ends 21 July 2025 – 17:00:00 UTC
Current Price
$1.59 at -20%
Lowest Recorded Price
$1.59 at -20%
7 April 2025
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
$1.59 at -20% | $1.59 | $1.59 | $1.59 at -20% | |
 Russian Ruble |
65 ₽ at -21% | $0.83 | -47.54% | $0.83 | 65 ₽ at -21% |
 Kazakhstani Tenge |
480₸ at -20% | $0.90 | -43.29% | $0.90 | 480₸ at -20% |
 Vietnamese Dong |
24000₫ at -20% | $0.91 | -42.27% | $0.91 | 24000₫ at -20% |
 Indonesian Rupiah |
Rp 15599 at -20% | $0.95 | -39.85% | $0.95 | Rp 15599 at -20% |
 Ukrainian Hryvnia |
40₴ at -20% | $0.95 | -39.71% | $0.95 | 40₴ at -20% |
 South African Rand |
R 17.20 at -20% | $0.96 | -39.24% | $0.96 | R 17.20 at -20% |
 Indian Rupee |
₹ 84 at -20% | $0.97 | -38.57% | $0.97 | ₹ 84 at -20% |
 Philippine Peso |
₱57.19 at -20% | $1.00 | -37.05% | $1.00 | ₱57.19 at -20% |
 Brazilian Real |
R$ 5,59 at -20% | $1.00 | -36.63% | $1.00 | R$ 5,59 at -20% |
 South Asia - USD |
$1.03 at -20% | $1.03 | -35.22% | $1.03 | $1.03 at -20% |
 Malaysian Ringgit |
RM4.55 at -20% | $1.07 | -32.58% | $1.07 | RM4.55 at -20% |
 Chilean Peso |
CLP$ 1040 at -20% | $1.07 | -32.22% | $1.07 | CLP$ 1040 at -20% |
 Colombian Peso |
COL$ 4400 at -20% | $1.10 | -30.80% | $1.10 | COL$ 4400 at -20% |
 CIS - U.S. Dollar |
$1.11 at -20% | $1.11 | -30.19% | $1.11 | $1.11 at -20% |
 Saudi Riyal |
4.20 SR at -20% | $1.11 | -29.58% | $1.11 | 4.20 SR at -20% |
 Peruvian Sol |
S/.4.00 at -20% | $1.13 | -28.85% | $1.13 | S/.4.00 at -20% |
 Mexican Peso |
Mex$ 21.59 at -20% | $1.15 | -27.63% | $1.15 | Mex$ 21.59 at -20% |
 Thai Baht |
฿37.60 at -20% | $1.15 | -27.06% | $1.15 | ฿37.60 at -20% |
 Kuwaiti Dinar |
0.36 KD at -20% | $1.17 | -25.90% | $1.17 | 0.36 KD at -20% |
 LATAM - U.S. Dollar |
$1.19 at -20% | $1.19 | -25.16% | $1.19 | $1.19 at -20% |
 MENA - U.S. Dollar |
$1.19 at -20% | $1.19 | -25.16% | $1.19 | $1.19 at -20% |
 Qatari Riyal |
4.39 QR at -20% | $1.20 | -24.02% | $1.20 | 4.39 QR at -20% |
 Taiwan Dollar |
NT$ 36 at -20% | $1.22 | -22.97% | $1.22 | NT$ 36 at -20% |
 Uruguayan Peso |
$U51 at -20% | $1.26 | -20.40% | $1.26 | $U51 at -20% |
 Japanese Yen |
¥ 188 at -20% | $1.26 | -20.37% | $1.26 | ¥ 188 at -20% |
 U.A.E. Dirham |
4.80 AED at -20% | $1.30 | -17.81% | $1.30 | 4.80 AED at -20% |
 South Korean Won |
₩ 1840 at -20% | $1.32 | -16.81% | $1.32 | ₩ 1840 at -20% |
 Hong Kong Dollar |
HK$ 10.40 at -20% | $1.32 | -16.67% | $1.32 | HK$ 10.40 at -20% |
 Singapore Dollar |
S$1.72 at -20% | $1.33 | -15.80% | $1.33 | S$1.72 at -20% |
 New Zealand Dollar |
NZ$ 2.39 at -20% | $1.42 | -10.47% | $1.42 | NZ$ 2.39 at -20% |
 Canadian Dollar |
CDN$ 2.07 at -20% | $1.50 | -5.23% | $1.50 | CDN$ 2.07 at -20% |
 Costa Rican Colon |
₡760 at -20% | $1.51 | -4.95% | $1.51 | ₡760 at -20% |
 Australian Dollar |
A$ 2.36 at -20% | $1.53 | -3.47% | $1.53 | A$ 2.36 at -20% |
 Israeli New Shekel |
₪5.80 at -20% | $1.72 | +8.50% | $1.72 | ₪5.80 at -20% |
 Norwegian Krone |
17,80 kr at -20% | $1.73 | +9.03% | $1.73 | 17,80 kr at -20% |
 British Pound |
£1.35 at -20% | $1.81 | +14.07% | $1.81 | £1.35 at -20% |
 Euro |
1,59€ at -20% | $1.84 | +16.29% | $1.84 | 1,59€ at -20% |
 Polish Zloty |
7,19zł at -20% | $1.96 | +23.50% | $1.96 | 7,19zł at -20% |
 Swiss Franc |
CHF 1.80 at -20% | $2.24 | +41.05% | $2.24 | CHF 1.80 at -20% |
 Chinese Yuan |
N/A | N/A | N/A | ||
Valve suggested prices are shown on package pages.
Price history
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Additional Information
| Developer | Kopon Games | |||||||||||||||||||
| controller_support | full | |||||||||||||||||||
| community_visible_stats | Yes | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | Kopon Games | |||||||||||||||||||
| Store Release Date | 5 February 2025 – 10:39:55 UTC ( |
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| osarch | empty string | |||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||
| Primary Genre | Casual (4) | |||||||||||||||||||
| Store Genres | Casual (4), Indie (23), Strategy (2) | |||||||||||||||||||
| Steam Release Date | 5 February 2025 – 10:39:52 UTC ( |
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| Store Asset Modification Time | 5 February 2025 – 16:40:01 UTC ( |
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| osextended | empty string | |||||||||||||||||||
| Detected Technologies (?) | Unity Engine, SteamworksNET SDK, UnityBurst SDK, UnityURP SDK, cURL SDK | |||||||||||||||||||
| restricted_countries | CN,DE China,  Germany |
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| Content Descriptors | Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5) | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| First seen on SteamDB | 12 July 2023 – 17:37:00 UTC ( |
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| Content Descriptors (Including DLC) | Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5) | |||||||||||||||||||
Supported Languages
| 2 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | |
| Portuguese - Brazil | Yes | Yes |
Assets
Load all asset images| clienticon | 9e05a42ee47a35135edf8ca216f3d95197b6b941 | ||||||||||||||||||||||||||||||||||
| clienttga | 7deb8c0cf5a01b4c1c08f9ad75a3c4c2e2342976 | ||||||||||||||||||||||||||||||||||
| icon | 6d096945258e9896cde9ba4f880af1de4dbde4b0 | ||||||||||||||||||||||||||||||||||
| small_capsule |
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