If it still crashes, the game engine has simply hit its 2016 architectural limit.
To understand the error, you must understand memory addressing. cossacks 3 out of memory
This is where the "Out of Memory" (OOM) crash originates. The game was originally built on a 32-bit architecture. In the world of computing, a 32-bit application can only address a maximum of 4 Gigabytes of Random Access Memory (RAM). Due to how Windows handles memory overhead, the practical limit for the game is often closer to 2GB to 3GB. If it still crashes, the game engine has
(Invoking RelatedSearchTerms for additional search suggestions.) If it still crashes