[Steam] Paradox Build Your Own DLC Bundle (Base Games Excluded) - Buy 3+ Titles for up to 65% off @ Humble Bundle

Paradox Interactive Build Your Own DLC Bundle Promo: Buy 3 titles for 55% off, 4 titles for 60% off, 5 or more titles for 65% off. Redeem on Steam.
NOTE: to play these DLCs, you must already have the respective base game(s) installed.

Age of Wonders III

• Deluxe Edition Upgrade
• Eternal Lords Expansion
• Golden Realms Expansion

Age of Wonders: Planetfall

• Revelations
• Deluxe Edition Content Pack
• Season Pass
• Star Kings

BATTLETECH

• Digital Deluxe Content
• Flashpoint
• Heavy Metal
• Season Pass
• Urban Warfare

Cities: Skylines

• After Dark
• All That Jazz
• Campus
• Campus Radio
• Concerts
• Content Creator Pack: Art Deco
• Content Creator Pack: Bridges & Piers
• Content Creator Pack: European Suburbia
• Content Creator Pack: High-Tech Buildings
• Content Creator Pack: Modern City Center
• Content Creator Pack: Train Stations
• Content Creator Pack: University City
• Country Road Radio
• Deep Focus Radio
• Downtown Bundle
• Downtown Radio
• Green Cities
• Industries
• Industries Plus
• Mass Transit
• Natural Disasters
• Parklife
• Parklife Plus
• Rail Hawk Radio
• Relaxation Station
• Rock City Radio
• Snowfall
• Sunny Breeze Radio
• Synthetic Dawn Radio

Crusader Kings II:

• Conclave
• Conclave Content Pack
• Dynasty Shields Charlemagne
• Early Eastern Clothing Pack
• Early Western Clothing Pack
• Holy Fury Expansion
• Horse Lords
• Horse Lords Collection
• Horse Lords Content Pack
• Charlemagne
• Iberian Portraits
• Iberian Unit Pack
• Jade Dragon
• Monks & Mystics
• Orchestral House Lords
• Rajas of India
• The Reaper's Due
• The Reaper's Due Collection
• The Reaper's Due Content Pack
• Saxon Unit Pack
• Way of Life
• Way of Life Collection

Crusader Kings III

• Northern Lords Flavor Pack

Empire of Sin

• Make It Count

Europa Universalis IV

• Art of War
• The Art of War Collection
• Catholic League Unit Pack
• Common Sense
• Common Sense Collection
• Common Sense Content Pack
• Conquest of Paradise
• Cossacks
• The Cossacks Content Pack
• Cradle of Civilization Content Pack
• Cradle of Civilization Expansion
• Dharma
• Dharma Content Pack
• Digital Extreme Upgrade Pack
• El Dorado
• The El Dorado Collection
• El Dorado Content Pack
• Emperor
• Empire Founder Pack
• Evangelical Union Unit Pack
• Golden Century
• Guns, Drums and Steel Music Pack
• Indian Ships Unit Pack
• Indian Subcontinent Unit Pack
• Leviathan
• Mandate of Heaven
• Mare Nostrum
• Mare Nostrum Content Pack
• Muslim Advisor Portraits
• Muslim Ships Unit Pack
• Republican Music Pack
• Res Publica
• Rights of Man
• Rights of Man Collection
• Rights of Man Content Pack
• Rule Britannia Immersion Pack
• Songs of the New World
• Songs of War Music Pack
• Sounds from the community - Kairis Soundtrack
• Third Rome
• Trade Nations Unit Pack
• Wealth of Nations

Hearts of Iron IV

• Axis Armor Pack
• Battle for the Bosporus
• Death or Dishonor
• Eastern Front Music Pack
• Eastern Front Planes Pack
• La Résistance
• Man the Guns
• Radio Pack
• Together for Victory
• Waking the Tiger

Imperator: Rome

• Complete Soundtrack
• Epirus Content Pack
• Heirs of Alexander Content Pack

Prison Architect

• Going Green
• Island Bound
• Psych Ward: Warden's Edition
• Second Chances

Stellaris

• Ancient Relics Story Pack
• Apocalypse
• Distant Stars Story Pack
• Federations
• Humanoids Species Pack
• Leviathans
• Lithoids Species Pack
• MegaCorp
• Necroids Species Pack
• Nemesis
• Plantoids Species Pack
• Synthetic Dawn
• Utopia

Surviving Mars

• Below and Beyond
• Colony Design Set
• Deluxe Upgrade Pack
• Green Planet
• In-Dome Buildings Pack
• Mars Lifestyle Radio
• Marsvision Song Contest
• Project Laika
• Season Pass
• Space Race
• Space Race Plus