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SGS Sealion

Wishlist Follow Ignore Install Unwatch Watch
App ID 2639430
App Type Game
Developer
Publisher Avalon Digital
Franchise SGS
Supported Systems Windows macOS
Technologies Unity Engine
Last Changenumber 31588869
Last Record Update 10 October 2025 – 07:05:48 UTC ()
Release Date 9 October 2025 – 14:55:23 UTC ()
❓ 64.08%
2 reviews
0
In-Game
💡 Strategy 🎲 Turn-Based Strategy 🔵 Wargame 🏽 2D 🎨 Colorful

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.

Additional Information

Developer Strategy Game Sudio
ReleaseState released
Publisher Avalon Digital
Store Release Date 9 October 2025 – 14:55:23 UTC ()
osarch empty string
community_hub_visible Yes
Social Media https://www.facebook.com/strategygamestudio/
https://www.youtube.com/@AvalonDigitalEditions
Primary Genre Strategy (2)
Store Genres Strategy (2)
Store Asset Modification Time 15 September 2025 – 16:06:26 UTC () (1757952386)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionCenterCenter
width_pct100
height_pct100
osextended macos64
Detected Technologies (?) Unity Engine, SteamworksNET SDK, UnityBurst SDK, cURL SDK
controllertagwizard Yes
First seen on SteamDB 6 October 2023 – 12:05:58 UTC (), in changelist #20575534

Supported Languages

9 Languages Interface Full Audio Subtitles
English Yes
French Yes
Italian Yes
German Yes
Simplified Chinese Yes
Russian Yes
Spanish - Spain Yes
Polish Yes
Portuguese - Portugal Yes

Tags

💡 Strategy 🎲 Turn-Based Strategy 🔵 Wargame 🏽 2D 🎨 Colorful ⚔️ War 📜 Historical 🪖 Military 🕰️ Alternate History 🧞 Choices Matter 🔚 Multiple Endings 📚 Story Rich 🎲 Turn-Based Tactics 👤 Singleplayer 🕹️ Multiplayer

Categories

Single-player Remote Play Together Family Sharing Multi-player PvP

Accessibility Categories

Playable without Timed Input Save Anytime

Assets

Load all asset images
clienticon 4b8e69080847331b9bfe2de60779fce8836f3dca
clienttga e954a0fb5bfa6f200feec09dc83d561e1297b3f8
icon 4b8e69080847331b9bfe2de60779fce8836f3dca
small_capsule
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header_image
english7aef796b98e2aaede2307a3a5985aa47c614bbcd/header.jpg
library_assets_full
library_capsule ↴
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image2x/englisha88f03e725171f18df70f81153b6534cbb7bc3b6/library_capsule_2x.jpg
library_hero ↴
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image/englishd749f8ea8d8f997463bf1716fcd0a990a0cf7882/library_hero.jpg
library_hero_blur ↴
image/englishd749f8ea8d8f997463bf1716fcd0a990a0cf7882/library_hero_blur.jpg
library_logo ↴
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image2x/english6abd9132e4d40f92ca4f00dab48aec6c5ec6baa0/logo_2x.png
logo_position/pinned_positionCenterCenter
logo_position/width_pct100
logo_position/height_pct100
library_header ↴
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Assets
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small_capsule87e4198a51323a2acc51aa8b9d7f911b5d1054e3/capsule_231x87.jpg
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page_background_pathapp/2639430
raw_page_background22830a63053f065633fe3d1032dc55576b558f63/page_bg_raw.jpg
timestamp9 October 2025 – 14:55:21 UTC
Trailers
978761 ↴
trailer_nameSGS Sealion Teaser
trailer_category0
trailer_480p/video/webm257198114/movie480_vp9.webm
trailer_480p/video/mp4257198114/movie480.mp4
trailer_max/video/webm257198114/movie_max_vp9.webm
trailer_max/video/mp4257198114/movie_max.mp4
microtrailer/video/webm2639430/2051929486/1e117a31b0c80d1bc4c95a06ddf010022d29a71e/1757948629/microtrailer.webm
microtrailer/video/mp42639430/2051929486/1e117a31b0c80d1bc4c95a06ddf010022d29a71e/1757948629/microtrailer.mp4
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screenshot_full257198114/d6a7052b09c16eccbc5c38e97018e6914aba02a8/movie_full.jpg
all_agestrue
is_highlighttrue
timestamp1757952394

Depots

ID Configuration Size DL.
2639431 367.02 MiB 290.71 MiB
2639432 Windows 32-bit 581.08 MiB 221.21 MiB
2639433 Windows 64-bit 594.22 MiB 226.37 MiB
2639434 macOS 589.66 MiB 225.57 MiB

Total size on disk is 2.08 GiB and total download size is 963.86 MiB.

Total size on disk is 1.51 GiB and total download size is 738.29 MiB, when filtered to Windows, English, no DLC depots.

Branches

Name Description Build ID Time Updated
public 20299453 8 October 2025 – 08:05:38 UTC

Other

Name Value
baselanguages English, German, French, Italian, Korean, Spanish - Spain, Simplified Chinese, Russian, Japanese, Portuguese - Portugal, Polish
privatebranches 1
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