Monster Stalker: Prologue is a free independent version of Monster Stalker, tells the early stage story of Monster Stalker. It combines card battle and RPG. Aliens invade earth and monsters are coming. You will build deck, fight various monsters and get teammates. Go fight and save earth!

Patch announcements
0 postsPosts the developer tagged as patch notes
Posts in a game's Steam news feed that Steam tags as patch notes.
News checked every 30 days. Observed since 24 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.