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Indie Gala has the Adventure Mega Bundle live at their site.
Pay the minimum (currently $1) for:
The Journey Down Chapter One
Runaway, The Dream of The Turtle
Pay $3.99 minimum for above plus:
Eidolon
The Last Tinker: City of Colors
About Love, Hate and the other ones
Runaway: Twist of Fate
Runaway, A Road Adventure
Venetica Gold Edition
War, the Game
Mushroom Men: Truffle Trouble
The Journey Down: Chapter Two
All titles activate on Steam.