https://store.steampowered.com/app/2928650/Only_Up_SKIBIDI_TOGETHER/
Only Up: SKIBIDI TOGETHER is an incredible multiplayer parkour game where precision and speed are important. Jump and climb over various obstacles. The slightest mistake can result in a fall to the starting location.

INSTRUCTION FOR ACTIVATION:

1. You must download and install Steam http://steampowered.com/download/SteamInstall.msi
2. Log in to your account or register a new one.
3. Go to the "My Games" section and select "Activate via Steam ..." and enter the key received after payment.
4. After activation, the game will appear in the list of games (Library) and you can download it