| 2015-06-16 | Released | 游戏正式发布 |
| 2015-07-14 | | July 2 Patch Notes |
| 2015-07-14 | | Default Contol Settings (Updated) |
| 2015-07-30 | | Co-Op Mode and UI updates are Live! |
| 2015-07-30 | | Audio Bug Fix |
| 2015-08-05 | | August 4 Patch Notes |
| 2015-08-06 | | August 6 Bug Fix and Patch Notes |
| 2015-08-07 | | August 7 minor bug fix |
| 2015-08-28 | | August 27 Patch Notes: Shooting down, Control Screen, and Bug Fixes |
| 2015-09-01 | | August 31 Patch Notes: Minor control change, Level switch delay, and bug fixes |
| 2015-09-12 | | 1st MAJOR UPDATE ANNOUNCEMENT! September 12 Patch Notes: Boss Battles and New Health System! |
| 2015-09-15 | DLC | Galagan's Island: Reprymian Rising OST |
| 2015-09-20 | | September 20 Patch Notes: Sound Track, Co-Op Changes, Swarm Updates |
| 2015-09-29 | DLC | Galagan's Island: Metagalactic Monstrosities |
| 2015-09-30 | | New Free DLC: Metagalactic Monstrosities |
| 2015-10-07 | | October 7 Patch: Boss Bug fix and UI Update |
| 2015-10-10 | | October 9 Update: Boss adjustments and new background |
| 2015-11-09 | | November 8 Update: Achievements are Live and Feature Playtesting |
| 2015-11-09 | | November 9 Bug Fix |
| 2015-11-11 | | ACHIEVEMENTS!!!! READ THIS!!! |
| 2015-11-11 | | November 11 Bug Fix: Achievements Reset |
| 2015-11-13 | | November 13 Balance Adjustment: Overheat and Shield |
| 2015-11-15 | | November 14: Increased Play Field |
| 2015-11-16 | | November 16: Boss Entrances Animations and Music Fading |
| 2015-11-18 | | Update 25, November 18: Mini Game Added |
| 2015-11-19 | | Galagan's Island NEEDS YOUR HELP!! |
| 2015-11-25 | | Update 26, November 25: Control Tightening & UI Adjustments |
| 2015-11-30 | | Update 27, November 30: Sound Track Update and Control Adjustments |
| 2015-12-02 | | Update 28, December 1: Increased Play Field, 16:9 Aspect Ratio, and Level Changes |
| 2015-12-07 | | Update 29, December 7: Bullet Time Adjustment |
| 2015-12-14 | | Holiday Bonus Update: Decemeber 13 |
| 2015-12-28 | | Update 30, December 28: Minor Text Adjustments |
| 2016-01-04 | | January 4: End of Holiday Skin (For Now) |
| 2016-01-05 | | Early Access Price Change |
| 2016-01-06 | | Update 31, January 6: UI Overhaul |
| 2016-01-12 | | Update 32, January 11: Tutorial Added and UI Updated |
| 2016-01-15 | | Update 33, January 14: Level Balance Adjustments |
| 2016-02-06 | | Tutorial Tweaking and Checkpoint System Coming |
| 2016-02-06 | | Tutorial Bug Fix |
| 2016-02-08 | | Bug Alert: Temporary patch rollback |
| 2016-02-08 | | Crash Bug Fix |
| 2016-02-16 | | Update 34, February 15: Checkpoints |
| 2016-02-22 | | Two New Games In Early Access |
| 2016-03-31 | | Update 35, March 28: Mac Achievements |
| 2016-06-03 | | Update 36, June 3: Preparations For Next Set of 25 Levels |
| 2016-06-07 | | Update 37, June 3: New Background Shader Effect |
| 2016-06-09 | | Update 38, June 9: Start Menu Adjustment |
| 2026-08-02 | | |