Compiled with the help of
http://gamenac.com/rage/collectible-playing-cards as I haven't played through and confirmed as of yet
MISSABLES (there are apparently two sections with cards that you can't return to get, and one card that is only available during a certain quest)
in the Dead City Central and Dead City Streets areas, four cards
in the Authority Prison area, six cards
in The Well area, two cards
during the defibrillator upgrade quest is the only chance to get the Large Mutant card even though you can go back to Dead City streets afterwards, it will be gone
List: (you may not reach them in this exact order)
__Ghost Hideout__
01. Ghost Bonestick - on the first floor, near strung up corpse, on a wooden barrier
02. Ghost Boss - on the floor, under a table on the first floor near the Cube statue
03. Ghost Pistol - behind a locked door on the hideout’s first floor
__Hagar Settlement__
Dan Hagar - on the nightstand beside the bed in Dan’s Gas Station
05. HE Grenades - on top of a barrel next to Becky (when she stands outside)
06. Dune Buster - Reward for Durar’s timetrial (the guy who gives you your first car)
07. Loosum Hagar - on a rock near Dan's Garage
|__Outrigger Settlement__| CARDS IN THIS SECTION ARE MISSABLE
08. Janus Outrigger * MISSABLE - on the couch next to Janus
09. Rikter Outrigger - Near the ladder in the Radio Tower shack (you get sent there by the outriggers on a quest)
__Wasted Garage__
10. Wasted Club - on the floor of the dead end staircase on the third floor
11. Wasted Pistol - in a box under the second floor stairs (after walking down them)
12. Wasted Turret - near the Piston Assembly in a knocked over box on a shelf, after the Boss
__Starter Deck__ - Picked up in Wellspring for $50
13. City Guard
14. Club Mutant
15. Jetter
16. Mayor Clayton
17. Sherriff Black
__Wellspring__
18. Sally - quest reward, Sally asks you to kill some bandit vehicles
19. Cupino - Reward for winning the Cupino (unlocking a car, main questline)
Elizabeth - On the stairs where you meet Captain Marshall and Elizabeth in the Second Chance Bar
__Mutant Bash TV__
21. JK Stiles - Reward for completing an episode of Mutant Bash TV
22. Scoop Mutant - on a crate on the left side of the corridor, after surviving the last phase of Mutant Bash TV
__Wasteland___ - these aren't all that close to one another, since the wasteland spans most of the game
23. Crazy Joe - on the workbench in Crazy Joe’s shack
24. Sentry Bot - near a rock next to the Stanley Express Mailbox, before heading across thebridge to Dr. Kvasir’s lab
Dagger Thrower - in the Dam, near the Wasted Garage exit; reach the Dam facility along the small path above the exit
Elite Guard - behind some boxes on the Authority Bridge
Enforcer - on the ground near the pipe enterance to Dead City
Monarch - near the entrance to the Power Plant
Portman - on the right side of the cave before entering the Abandoned Distillary
Sentry Turret - on a chair in the dead end room of the concrete building, near the Wasted Garage and Radio Tower
Shrouded Minigun- in the blue shipping container, after the Feltrite Refinery
__Gearhead Vault__
Adv. Sentry Bot - In the backseat of a car near the exit in the parking garage
Gearhead Jet - In the office after leaving the vault and heading up the curved staircase
Gearhead Shotgun- On the planter to the right, in the bank lobby
__Power Plant__
Gearhead Boss - In a filing cabinet in the office above the control room
__Subway Town__
Authority Mutant- Beside the dead mutant in Elizabeth’s lab, in the Resistance Base
__Blue Line Station__
Dyno-Mutant - During the Eviction Notice job, on the second floor of the Guacamolito restaurant
__Jackal Canyon__
Jackal Club - In the shack where you open the gate to enter the canyon
Jackal Crossbow - In a small alcove to the left, after entering the canyon, near some Dynomite Bolts and Beer Bottles
|__Dead City Streets__| CARDS IN THIS SECTION ARE MISSABLE
Large Mutant * MISSABLE - Requires RC Car: Enter the supply room through the drain pipe close to where you fought the launcher mutant and blow up the barricade to open the door
Kraken - on the floor, in the blood filled alcove where thetentacle mutant spawned
|__Dead City Central__| CARDS IN THIS SECTION ARE MISSABLE
Drone * MISSABLE - On the coffee table in thehospital lobby, under the escalator – available on your second trip
Slime Mutant - On a table near the shop in the mall where you enter by exploding the gas tanks
__Shrouded bunker__
RC Bomb Car - Above the RC Bomb Car’s hole, near the bunker’s entrance
Shrouded AR - On a shelf near the elevator, after the atrium fight
Shrouded Heavy - in a pipe above the top floor of the workshop beside the second bomb cache
|__THE WELL__| CARDS IN THIS SECTION ARE MISSABLE
Drop Mine * MISSABLE - After the long passage with the concrete pillars, there’s a ladder on your left that leads to some supplies
Valder * MISSABLE - While Valder is attempting to open the gate to the final area, go down the dead end tunnel
|__AUTHORITY PRISON__| CARDS IN THIS SECTION ARE MISSABLE
Power Supply * MISSABLE - On a shelf beside a Hardware Packet, after disabling the first generator and passing through the security barrier
Giant Mutant * MISSABLE - Through the hole in the corridor’s left side wall, before reaching the first security turret
EMP Grenade * MISSABLE - After the fight in Cellblock E, head up the stairs and find this on the shelf to your right, in the corner
Drop Ship * MISSABLE - inside the crate that Captain Marshall pulls his rifle out of, after you rescue him
Captain Marshall* MISSABLE - In a closet behind a locked door after breaking Captain Marshall out
Shield Guard * MISSABLE - After splitting up from Captain Marshall and before exiting the prison, in a closet room on theright side of the corridor