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Puffballs United, the creator of the Henry Stickmin series, registers his Newgrounds account.
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Crossing the Pit, a prototype for the Henry Stickmin series, is released on Newgrounds.
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The legacy version of Breaking the Bank is released.
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The legacy version of Escaping the Prison, the most popular game in the Henry stickmin series, is released.
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In a Newground post, Puffballs United hints at a decision where he can choose between the third Stickmin game or the first episode of the flash movie series "Failiens".
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In the post annoucing the first Failiens episode, Puffballs United also states development has begun on the third Henry Stickmin game.
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Escaping the Prison hits one million newgrounds views. To celebrate, Puffballs reveals some minor details on the third Stickmin game, including that it will be bigger and will not revolve around another jailbreak.
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Escaping the Prison hits 20 million Newgrounds views. To celebrate, Puffballs reveals the third game's name as "Stealing the Diamond" and states it is at two-thirds completion.
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Stealing the Diamond is released on Newgrounds.
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In a Newgrounds post, Puffballs United thanks the Newgrounds users for Stealing the Diamond's positive reception and hints at a fourth game, despite the fact that Stealing the Diamond was initially inteded to be the final game in the series.
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Puffballs United states he has settled on an idea for the fourth game and releases some notes from the development of Escaping the Prison and Stealing the Diamond.
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Puffballs United, after almost eight months of inactivity, announces "Infiltrating the Airship", the fourth game in the series, and states it is at 75% completion.
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Infiltrating the Airship is released on Newgrounds, but against Puffballs United's expectations it only makes it to Daily 4th.
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Escaping the Prison and Stealing the Diamond are released on iOS and Android.
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Puffballs United reveals the initials for the fifth Henry game, FtC.
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Puffballs United announces the fifth game's name as "Fleeing the Complex", stating it will have 5 endings and 58 unique fails.
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Puffballs United announces that Fleeing the Complex is halfway complete, but the game's release has to be delayed until mid-autumn.
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Fleeing thr Complex is released on Newgrounds.
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Puffballs United thanks the Newgrounds users for the positive reception of Fleeing the Complex, and announces the formation of game development syudio Innersloth with Fortebass.
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Pufffballs United announces he has begun planning the sixth Henry game.
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Puffballs United, in a long post, announces the sixth Henry game is planned to the final entry in the series. He also announces The Henry Stickmin Collection, which will contain remastered version of the first five games in the series alongside this sixth game, and this collection will only be released on Steam, not Newgrounds.
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Puffballs United posts an update on progress for The Henry Stickmin collection, showcasing some of the new widescreen backgrounds.
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In a New Years update, Puffballs United reveals the sixth game's initials as CtM. He also showcases the first screenshot of the Toppat launch site.
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Puffballs United announces the name of the sixth Henry game as "Completing the Mission".
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For the 10th anniversary of Breaking the Bank, Puffballs United goes into more detail on how far he's come and the remaster of Breaking the Bank.
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Puffballs United announces Completing the Mission has hit 25% completion.
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Despite having missed it by a few days, Puffballs United makes a post for Escaping the Prison's 9th anniversary where he shows off some screenshots from that game's remaster.
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Completing the Mission hits 50% completion, prompting Puffballs United to launch the Collection's Steam page.
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Puffballs United posts on Newgrounds a YouTube link to the Collection's announcement trailer.
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Due to technical issues involving Flash on mobile, the mobile versions of the Henry games are pulled from the Android and iOS app stores.
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Puffballs United posts a 2020 New Years update for Completing the Mission, stating the game is two-thirds complete and he is aiming for a summer 2020 release.
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Puffballs United posts an update in which he reveals the animation for the Collection is 92% done.
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Puffballs United announces the collection will launch on Steam on August 7th. He also announces the price is $15 USD and showcases character bios.
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After three long, hard years of work, Puffballs United officially announces the release of the Henry Stickmin Collection, with Completing the Mission, on Steam.