diff --git a/r5dev/cmake/PostBuild.cmake b/r5dev/cmake/PostBuild.cmake
new file mode 100644
index 00000000..a5355aff
--- /dev/null
+++ b/r5dev/cmake/PostBuild.cmake
@@ -0,0 +1,49 @@
+# -----------------------------------------------------------------------------
+# Creates and writes the build string after building a project
+# -----------------------------------------------------------------------------
+function( WriteBuildString OUTPUT_DIR )
+    # Get the current date and time
+    string( TIMESTAMP CURRENT_DATE "%Y_%m_%d_%I_%M" )  # Use %I for 12-hour clock
+
+    # Compute AM/PM
+    string( TIMESTAMP CURRENT_HOUR "%H" )
+    if( CURRENT_HOUR LESS 12 )
+        set( TIME_DESIGNATOR "AM" )
+    else()
+        set( TIME_DESIGNATOR "PM" )
+    endif()
+
+    # Get the current git commit hash
+    execute_process( COMMAND
+        git rev-parse --short HEAD
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_COMMIT_HASH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+
+    # Convert the hash to uppercase
+    string( TOUPPER
+        "${GIT_COMMIT_HASH} GIT_COMMIT_HASH"
+    )
+
+    # Get the current git branch name
+    execute_process( COMMAND
+        git rev-parse --abbrev-ref HEAD
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_BRANCH_NAME
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+
+    # Construct the build string
+    set( BUILD_STRING
+        "R5pc_${GIT_BRANCH_NAME}_N1094_${GIT_COMMIT_HASH}_${CURRENT_DATE}_${TIME_DESIGNATOR}\n"
+    )
+
+    # Write the build string to a file
+    file( WRITE
+        "${CMAKE_SOURCE_DIR}/${OUTPUT_DIR}/build.txt ${BUILD_STRING}"
+    )
+endfunction()
+
+# Initiate the creation command
+WriteBuildString( "../../../game" )
diff --git a/r5dev/core/CMakeLists.txt b/r5dev/core/CMakeLists.txt
index 1c1c9100..baa7b3b0 100644
--- a/r5dev/core/CMakeLists.txt
+++ b/r5dev/core/CMakeLists.txt
@@ -120,6 +120,10 @@ target_link_options( ${PROJECT_NAME} PRIVATE
     "/STACK:8000000" # Match game executable stack reserve size
 )
 
+add_custom_command( TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -P ${ENGINE_SOURCE_DIR}/cmake/PostBuild.cmake
+)
+
 endmacro()
 
 add_sdk_project( "gamesdk" )