Use the SteamDB Oxygen Not Included Patch Tracker to cross-reference your version with the latest legitimate build.
If you are looking for new features, join the public_testing branch through the Properties > Betas menu in your Steam library.
The file appears to be an unofficial or potentially malicious distribution. Official build numbers for Oxygen Not Included as of April 2026 are in the 722,000 range (e.g., Build 722606), making a build number starting with "995" highly irregular. Build Authenticity Review
Files with inflated or "fake" version numbers are frequently used to distribute trojans or keyloggers.
If you have already downloaded the "9957198" file, it is strongly recommended to delete it and perform a full system scan with reputable antivirus software.