Tier 1:

Black Desert Online Novice Edition (Website Redeem)
Life is Feudal: MMO Special Edition (Website Redeem)
Minion Masters (RU/CIS) (Steam Gift)
Guest Pass: Counter-Strike: Source (Steam Gift)
Guest Pass: Killing Floor - Guest Pass (x2) (Steam Gift)
Guest Pass: Red Orchestra: Ostfront 41-45 (x2) (Steam Gift)
Deponia
Puzzle Kingdoms
Theatre of War 2: Africa 1943
Theatre of War 2: Kursk 1943
Theatre of War 3: Korea
Victory: The Age of Racing
Reflex (x3)
Leviathan: Warships (x2) (DELISTED)
POSTAL 1
Soulcraft
Dead Bits (x7)
Beat Hazard Complete
Space Pilgrim Episode II: Epsilon Indi
Paranautical Activity
Through Abandoned: The Forest
Weapons Genius
Regular Human Basketball
12 is Better Than 6 (x2)

Tier 1.5

Autonauts vs Piratebots
Stygian: Reign of the Old Ones (x2)
Frick, Inc.
Non-Stop Raiders
Planet TD
Ironcast
Omen Exitio: Plague
Reventure
Desolate
Sentience: The Android's Tale
The Deed II
Train Valley 2
X-Morph Defense
The Adventure Pals
Automachef
Goat of Duty
Desert Child
Autonauts
Safety First!
Ancestor's Legacy
American Fugitive
Ultimate Zombie Defense

Tier 2:

Dino D-Day (LATAM) (Steam Gift)
Spacebase DF-9 (Steam Gift)
Command Heroes
Agent in Depth
Arcade Spirits
Cosmic Express
Detached: Non-VR Edition
Doughlings: Arcade
Doughlings: Invasion
Guns & Fishes
Hyper Gunsport
Meow Express
Non-Stop Raiders
Orbital Racer
Pixross
Planet TD
Quadrata
Rym 9000
Soulblight
Soulflow
Space Crew: Legendary Edition
Stygian: Reign of the Old Ones
Sunlight
SYMMETRY
The Inner World
Worms Rumble
X-Morph: Defense Complete Pack
Regular Human Basketball

Tier 3:

Don't Starve Together (Turkey) (Steam Gift)
Nightmares from the Deep 2: The Siren's Call (DELISTED)
Dead Age 2
Dishonored
Little Orpheus
DiRT Showdown (x3)
Lamentum
Cats in Time
Block'Em
XLarn
Nearly Dead Live and Let Die
Metal Unit
Bots Are Stupid
Lost Words: Beyond the Page
Trolley Problem, Inc.
Achtung! Cthulhu Tactics
Sexy Jigsaw | 性感拼图 | 섹시 퍼즐 | セクシーなパズル
Funtasia
Mythic Ocean
Alien Solider (MegaDrive)
Shining Force (MegaDrive)
Killing Floor
No Time To Explain Remastered
Stealth Inc 2: A Game of Clones
Q.U.B.E: Director's Cut
Capitalism 2
CryoFall
Seven: Enhanced Edition
Raiden V: Director's Cut
Sakura Spirit

Tier 4:

Guardians of Middle-earth (DELISTED)
Leisure Suit Larry in the Land of the Lounge Lizards: Reloaded (DELISTED)
Skullgirls 2nd Encore
Mortal Kombat XL
Batman: Arkham Knight Premium Edition
Dynopunk
The Smurfs - Mission Vileaf
Late Shift
Fight'N Rage
Fallout: New Vegas
Evoland
Raptor: Call of The Shadows - 2015 Edition
Z
Puzzle Agent
Puzzle Agent 2
Quake II
Zombie Army Trilogy
Machinika Museum (x2)
Suffer the Night

Tier 5:

Move or Die (Steam Gift)
Deadpool (RU/CIS) (DELISTED)
Football Manager 2020 (DELISTED)
GRID Autosport (DELISTED)
Dead Island Riptide Complete Edition (DELISTED)
GRID 2 (DELISTED)
Sonic CD (DELISTED)
Euro Truck Simulator 2
Barotrauma
Fallout 76
Kerbal Space Program
Bendy and the Ink Machine (x2)
The Age of Decadence
Distance
The Hong Kong Massacre
Roundguard
Bigfoot
The Witness
The Infected
The Stanley Parable
Crusader Kings III
Phantasmagoria
Ghostrunner
TimeShift
Sonic Lost World
7 Billion Humans
Tekken 7
Bioshock Remastered
Blades of Time - Limited Edition
Wasteland 3
Blasphemous
Odallus: The Dark Call
Sunset Overdrive
Nuclear Throne
Risen
Risen 2: Dark Waters Gold Edition
World of Goo 
Human Resource Machine
Jurassic World Evolution Deluxe (Main Game + Deluxe DLC)
Snooker 19
The Bard's Tale IV: Director's Cut + The Bard's Tale Trilogy
Alan Wake Collector's Edition
Alder's Blood: Definitive Edition
Quake Live
Mega Man 11

Make War Not Love 3 - Prize 3:

• Renegade Ops Collection (Renegade Ops, Renegade Ops Reinforcement Pack, Renegade Ops Coldstrike Campaign)
• Gunstar Heroes
• Viking: Battle for Asgard
• SEGA Mega Drive & Genesis Classics

Make War Not Love 3 - Prize 2:

• Streets of Rage 2
• Binary Domain
• Condemned: Criminal Origins
• SEGA Mega Drive & Genesis Classics

DLCS/Other:

Call of Duty®: WWII - Call of Duty Endowment Bravery Pack
Call of Duty®: WWII - Call of Duty Endowment Fear Not Pack
Guardians of Middle-earth: Smaug's Treasure DLC
Switch Galaxy Ultra Charity Pack 1
Starfinder Core Rulebook and Starfinder: Junker's Delight (https://support.humblebundle.com/hc/en-us/articles/216821337)
Sonic Frontiers - Sonic Adventure 2 Shoes
Genshin Impact: Prime Bundle #8
PUBG MOBILE: Don't Bite the Hand That Feeds You Parachute
Dead by Daylight: Tome 15: ASCENSION – Rift Pass
Frostpunk Original Soundtrack
Roblox: Murder Mystery 2 Knife Crown (May keep)
Spy Tactics - Norris Industries
Roblox: Freaky Fly Face
Pokémon GO: Premium Battle Pass + Silver Pinap Berry
Dead by Daylight: 400,000 Bloodpoints
Trainz Simulator 12 - Aerotrain DLC

If you see something from Prime Gaming rewards that isn't on the list, feel free to tell me and I can add it to the list :)