Humble Bundle offers downloads of the Humble Game Making Bundle for Windows for whatever you want to pay. If you opt to pay the bare minimum of $1, you'll get the Game Dev Starter Pack (which includes the GameGuru and Axis Game Factory Pro v3.0 building engines), Stencyl: Indie Edition 1-Year License, Humble Bundle Starter DLC Pack, Indie Game Maker Contest '14 Finalist Pack featuring Remnants of Isolation and Last Word, Labyrinthine Dreams, and Humble Store coupons for 90% off RPG Maker 2000, 2003, and XP. That's $138 under the best price we could find for GameGuru, AGFPRO v3.0, and a 1-year Stencyl license alone.

If you pay more than the average, currently $10.88, you'll also get RPG Maker VX Ace Deluxe Edition, Game Character Hub, Humble Bundle Sci-Fi DLC Pack, Humble Bundle New DLC Pack, Aveyond: Lord of Twilight, and Crimzon Clover World Ignition. Pay $12 or more to also get App Game Kit 2, Spriter Pro, Sprite Lamp, Humble Bundle Fantasy DLC Pack, and Goats On A Bridge. Your contribution can be donated to charity, the developers, or both. A Steam account is required for some items. Deal ends July 21.

Note: Select products of this deal, including Axis Game Factory Pro v3.0, are also compatible with Mac and Linux. See system requirements here.