www.clickteam.com/clickteam-fusion-2-5
Clickteam Fusion 2.5 is the successor to Multimedia Fusion 2, the company's most well-received software application to date. The Fusion series was designed to be a user-friendly yet powerful drag-and-drop game and application creation program, easily accessible to either those well-versed or inexperienced in programming.
Source: Wikipedia
Pretty sure everything is indie on itch.io but just in case you want something extra indie.
Explore Other games not in game jams made with Clickteam Fusion tagged Indie on itch.io · Upload your games not in game jams made with Clickteam Fusion to itch.io to have them show up here.
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