Poseidon is a naval war simulation video game and is a precursor to the massive concept of Aegis 2 which is in production. The game concept for Poseidon is "Navies of the world unite against terrorists who are hell-bent to destroy an oil rig with a classified cargo".

Update posts
0 postsPosts announcing an update, tagged as patch notes or not
Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.
News checked every 30 days. Observed since 22 Oct 2026.
Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology
From the game’s Steam news feed, last checked . An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.