SGS Sealion
Operation Sealion is Germany's code name for the planned invasion of Britain in 1940. It could have happened after a victory of the Luftwaffe in the Battle of Britain. Find out in this game how in could have unfolded.
- Price:$24.99
- Release Date:10/9/2025
- Franchise:Strategy Game Studio (SGS)
- Developer:Strategy Game Sudio
- Publisher:Avalon Digital
- Last Updated:10/31/2025
- Steam App Id:2639430
Steam Charts, Stats, and Live Player Count
At the moment, SGS Sealion has 2 concurrent players online and in-game. This is 80% lower than its previous all-time peak of 10 players achieved on 10/11/2025.

Review History Chart
Track historical review trends and overall ratings for SGS Sealion. It has received a total of 4 reviews on the Steam store and achieved a Player Score of 69 (4 user reviews).
Price History Chart
Track historical price changes and trends for SGS Sealion. Right now, it costs $24.99 in the Steam Store.
Community Hub Members & Followers Chart
Explore the cumulative breakdown of Steam community hub members for SGS Sealion and its growth over time. It currently has 123 followers on its community page.
About SGS Sealion
SGS Sealion is a Strategy game developed by Strategy Game Sudio. On 10/9/2025, it was released on the Steam Store by Avalon Digital.
Players have rated SGS Sealion as "4 user reviews" out of 4 total reviews on the Steam Store. These are split between 4 positive reviews and 0 negative reviews — an overall 100% positive review rating.
It is available for gamers to download and play for $24.99.
It can be played and ran on both Windows and Mac systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
It also supports 9 languanges in-game including English, French, Italian, German, and Chinese (Simplified). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, SGS Sealion supports the following features:
- Single-player
- Family Sharing
- Save Anytime
- PvP
- Playable without Timed Input
- Multi-player
- Remote Play Together
From the Steam community, SGS Sealion has been tagged with the following user tags:
- Multiplayer
- Multiple Endings
- War
- Story Rich
- Historical
- Choices Matter
- Turn-Based Tactics
- Wargame
- Strategy
- Alternate History
- Turn-Based Strategy
- Military
- Colorful
- Singleplayer
- 2D
Media & Sceenshots
Watch the featured video for SGS Sealion and see the latest screenshots from the Steam Store.
Related Packages
SGS Sealion is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| SGS Sealion | $18.74 | View |
Supported Languages
SGS Sealion is available in 9 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | No |
| French | Yes | No | No |
| Italian | Yes | No | No |
| German | Yes | No | No |
| Chinese (Simplified) | Yes | No | No |
| Russian | Yes | No | No |
| Spanish (Spain) | Yes | No | No |
| Polish | Yes | No | No |
| Portuguese | Yes | No | No |
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in realtime to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
SGS Sealion data has been sourced from:
- Valve Corporation. (2025, October 31). SGS Sealion on Steam. Steam Store. https://store.steampowered.com/app/2639430
- Valve Corporation. (2025, October 31). SGS Sealion. Steam Community Hub. https://steamcommunity.com/app/2639430
- Strategy Game Sudio. (2025, August 27). SGS Sealion. SGS Sealion. https://strategygamestudio.com/games/sgs-sealion-seelowe/