** 1. Open steam console - **
steam://nav/console
** 2. download old version of spelunky 2 - **
enter into console:
"download_depot 418530 418531 5200527185522426947"
** 3. locate the downloaded launcher - **
C:\Program Files (x86)\Steam\steamapps\content\app_418530\depot_418531
** 4. Copy launcher from depot folder to local files for the game - **
** 5. launch the game - **
optional: install playlunky version v.0.14.2
hope this helps people who like me are very impatient with the synching.