Doorways, later renamed to Doorways: Prelude, had Steam trading card support added on 2 December 2013. There are 6 cards in the series, and you'll receive 3 cards at random for purchasing and playing the game.
The other installment in the game series, Doorways: The Underworld, also has trading card support.
Trading Cards[]
Foil Cards[]
Badges[]
Level 1
Passive
Passive
Level 2
Thinker
Thinker
Level 3
Artist
Artist
Level 4
Tester
Tester
Level 5
Executer
Executer
Foil Badge
RESULT
RESULT
Booster Pack[]
Emoticons[]
:d_ghost:
(common)
(common)
:d_human:
(common)
(common)
:d_titan:
(common)
(common)
:d_key:
(uncommon)
(uncommon)
:d_rune:
(rare)
(rare)
Profile Backgrounds[]
The Forest
(common)
(common)
The House
(common)
(common)
Evidences 1
(uncommon)
(uncommon)
Evidences 2
(uncommon)
(uncommon)
Statues
(rare)
(rare)
