Humble Bundle is currently re-running the first Campaign Cartographer 3+ bundle, the Maps Extravaganza, containing not only CC3+, but depending on the level chosen also:

• City Designer 3
• Dungeon Designer 3
• Tome of Ultimate Mapping Plus
• Perspectives 3
• Sources Maps: Castles
• Source Maps: Temples, Tombs and Catacombs
• Symbol Set 2 – Fantasy Floorplans
• Token Treasury – Monsters 1
• Battle Maps and Floorplans Collection (contains a selection of Annual issues)

If you were waiting to jump into CC3+, this is a great opportunity to get it at an awesome price. Even if you already CC3+, this can be well worth it to get a great selection of add-ons. Part of the cost goes toward charity, Save the Children.