Serum - Official Guide
Equip yourself with essential knowledge and expert advice with the digital guidebook.
Offers
What are keyshops?Base game (1)
This is the base game required to play this DLC. Other expansions may also be required.
Multipacks (4)
DLCs (3)
About Serum - Official Guide
How to access the Digital Goodies
All digital goodies can be found in the game’s install directory within their respective folder in Steam\SteamApps\common\Serum after the DLC has finished downloading.
Game details
Game details
Age ratings
Game modes
Serum - Official Guide price history
Lowest tracked price: £2.24 (Jul 7, 2026) · current best: £8.99.
Serum - Official Guide — frequently asked questions
Where can I buy Serum - Official Guide at the cheapest price?
Right now the cheapest offer for Serum - Official Guide is £8.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Serum - Official Guide has ever been?
The lowest price KingsPrice has tracked for Serum - Official Guide is £2.24 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How can I get Serum - Official Guide at a discount?
Create a free price alert on this page and KingsPrice will email you when Serum - Official Guide drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.