
Cepheus Protocol
App ID | 979640 |
App Type | Game |
Developer | Halcyon Winds |
Publisher | Halcyon Winds |
Franchise | Cepheus Protocol |
Supported Systems | Windows |
Technologies | Unreal Engine, EpicOnlineServices SDK |
Last Changenumber | 29803716 |
Last Record Update | 28 June 2025 – 17:05:09 UTC ( |
Release Date | 15 May 2020 – 07:47:00 UTC ( |
Cepheus Protocol is an Open World RTS Military Survival Game. Play as the CERC hunting Patient 0, maintain Quarantine camps, fight dangerous mutations & Rogue Civilian Combatants . There’s nobody else coming, it’s up to you now.
Steam price history
Special Promotion, offer ends 10 July 2025 – 17:00:00 UTC
Current Price
$15.99 at -20%
Lowest Recorded Price
$9.89 at -34%
29 October 2020
Currency | Current Price | Converted Price | Lowest Recorded Price | ||
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$15.99 at -20% | $15.99 | $9.89 | $9.89 at -34% | |
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$6.55 at -20% | $6.55 | -59.04% | $4.61 | $4.61 at -34% |
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568 ₽ at -20% | $7.19 | -54.99% | $3.00 | 237 ₽ at -34% |
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208000₫ at -20% | $7.94 | -50.29% | $4.16 | 109000₫ at -34% |
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332₴ at -20% | $7.95 | -50.27% | $3.61 | 151₴ at -34% |
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4160₸ at -20% | $8.01 | -49.90% | $3.05 | 1584₸ at -34% |
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Rp 132799 at -20% | $8.19 | -48.74% | $3.91 | Rp 63359 at -34% |
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₹ 704 at -20% | $8.22 | -48.59% | $3.52 | ₹ 302 at -34% |
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$8.39 at -20% | $8.39 | -47.53% | $5.60 | $5.60 at -34% |
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$8.39 at -20% | $8.39 | -47.53% | $8.39 | $8.39 at -20% |
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$8.39 at -20% | $8.39 | -47.53% | $8.39 | $8.39 at -20% |
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R 148.00 at -20% | $8.42 | -47.30% | $3.94 | R 69.30 at -34% |
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¥ 60.80 at -20% | $8.48 | -46.93% | $4.60 | ¥ 33 at -34% |
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32.76 SR at -20% | $8.73 | -45.37% | $5.26 | 19.76 SR at -34% |
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₱492.00 at -20% | $8.73 | -45.36% | $4.57 | ₱257.36 at -34% |
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2.68 KD at -20% | $8.78 | -45.08% | $6.02 | 1.84 KD at -34% |
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R$ 47,99 at -20% | $8.85 | -44.61% | $3.53 | R$ 19,13 at -34% |
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NT$ 262 at -20% | $9.04 | -43.41% | $6.07 | NT$ 176 at -34% |
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CLP$ 8400 at -20% | $9.06 | -43.29% | $4.56 | CLP$ 4224 at -34% |
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RM39.20 at -20% | $9.26 | -42.03% | $4.99 | RM21.12 at -34% |
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COL$ 38000 at -20% | $9.46 | -40.78% | $4.11 | COL$ 16500 at -34% |
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35.19 QR at -20% | $9.66 | -39.55% | $6.16 | 22.43 QR at -34% |
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S/.34.40 at -20% | $9.67 | -39.50% | $5.75 | S/.20.46 at -34% |
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Mex$ 182.39 at -20% | $9.71 | -39.23% | $5.44 | Mex$ 102.29 at -34% |
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฿320.00 at -20% | $9.89 | -38.10% | $4.87 | ฿157.74 at -34% |
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42.40 AED at -20% | $11.54 | -27.81% | $7.54 | 27.72 AED at -34% |
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S$14.80 at -20% | $11.62 | -27.28% | $7.51 | S$9.57 at -34% |
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$U476 at -20% | $11.87 | -25.71% | $5.41 | $U217 at -34% |
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₩ 17200 at -20% | $12.68 | -20.64% | $7.54 | ₩ 10230 at -34% |
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HK$ 100.00 at -20% | $12.73 | -20.33% | $6.38 | HK$ 50.16 at -34% |
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¥ 1840 at -20% | $12.81 | -19.88% | $6.98 | ¥ 1003 at -34% |
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₡6800 at -20% | $13.46 | -15.81% | $8.49 | ₡4290 at -34% |
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NZ$ 23.19 at -20% | $14.12 | -11.64% | $7.43 | NZ$ 12.20 at -34% |
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CDN$ 20.79 at -20% | $15.29 | -4.32% | $8.49 | CDN$ 11.54 at -34% |
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A$ 23.60 at -20% | $15.54 | -2.77% | $9.34 | A$ 14.19 at -34% |
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176,00 kr at -20% | $17.49 | +9.41% | $6.75 | 67,98 kr at -34% |
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₪59.16 at -20% | $17.54 | +9.73% | $10.94 | ₪36.92 at -34% |
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£13.40 at -20% | $18.27 | +14.27% | $10.24 | £7.51 at -34% |
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15,60€ at -20% | $18.41 | +15.15% | $9.72 | 8,24€ at -34% |
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73,59zł at -20% | $20.36 | +27.38% | $9.86 | 35,63zł at -34% |
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CHF 17.59 at -20% | $22.22 | +39.02% | $12.92 | CHF 10.23 at -34% |
Valve suggested prices are shown on package pages.
Price history
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Additional Information
Developer | Halcyon Winds | |||||||||||||||||||||||||||
controller_support | partial | |||||||||||||||||||||||||||
community_visible_stats | Yes | |||||||||||||||||||||||||||
workshop_visible | Yes | |||||||||||||||||||||||||||
DLCAvailableOnStore | Yes | |||||||||||||||||||||||||||
ReleaseState | released | |||||||||||||||||||||||||||
Publisher | Halcyon Winds | |||||||||||||||||||||||||||
eulas |
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Store Release Date | 15 May 2020 – 07:47:36 UTC ( |
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osarch | 64 | |||||||||||||||||||||||||||
community_hub_visible | Yes | |||||||||||||||||||||||||||
AbsoluteMouseCoordinates | Yes | |||||||||||||||||||||||||||
Social Media | https://discord.gg/hYzMx3JgDN https://www.facebook.com/CepheusProtocol/ https://www.twitch.tv/halcyonwinds https://x.com/CepheusProtocol https://www.youtube.com/channel/UC0eBJIGecAjqbAcJk3IajoQ/ |
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Primary Genre | Strategy (2) | |||||||||||||||||||||||||||
Store Genres | Action (1), Adventure (25), Indie (23), Simulation (28), Strategy (2), Early Access (70) | |||||||||||||||||||||||||||
Steam Release Date | 15 May 2020 – 07:47:00 UTC ( |
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Store Asset Modification Time | 28 June 2025 – 17:04:15 UTC ( |
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library_assets |
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osextended | empty string | |||||||||||||||||||||||||||
review_score | 6 | |||||||||||||||||||||||||||
review_percentage | 78 | |||||||||||||||||||||||||||
RemotePlayTogetherTestingBranches | default | |||||||||||||||||||||||||||
Detected Technologies (?) | Unreal Engine, EpicOnlineServices SDK, Intel_OID SDK, Intel_oneTBB SDK, NVIDIA_Nsight_Aftermath SDK, Ogg SDK, Vorbis SDK, XAudio2 SDK | |||||||||||||||||||||||||||
Steam Deck Compatibility |
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Content Descriptors | Frequent Violence or Gore (2), General Mature Content (5) | |||||||||||||||||||||||||||
controllertagwizard | Yes | |||||||||||||||||||||||||||
Early Access Release Date | 15 May 2020 – 00:00:00 UTC ( |
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First seen on SteamDB | 8 November 2018 – 08:23:52 UTC ( |
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Content Descriptors (Including DLC) | Frequent Violence or Gore (2), General Mature Content (5) |
Supported Languages
9 Languages | Interface | Full Audio | Subtitles |
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English | Yes | Yes | |
Simplified Chinese | Yes | ||
Korean | Yes | ||
German | Yes | ||
Japanese | Yes | ||
Russian | Yes | ||
Spanish - Spain | Yes | ||
Portuguese - Portugal | Yes | ||
French | Yes |
Assets
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logo | 442574f6127ef08518c4c25f0c1ad131b9d821f2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
logo_small | 442574f6127ef08518c4c25f0c1ad131b9d821f2_thumb | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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