Here is a possible concise summary:
Enter the Gungeon is a pixel-art roguelike game that combines dungeon crawling, guns, and bullet hell gameplay. It was developed by Dodge Roll, a studio formed by ex-employees of Mythic Entertainment, who left the company after it was shut down by EA in 2014. The game was inspired by many other games, such as Binding of Isaac, Dark Souls, Zelda, and Ikaruga. The developers used an open source bullet scripting system called BulletML to create intricate bullet patterns for the enemies and bosses. The game also features over 200 unique guns, some of which are references to other games and media. The game was released in April 2016, after a year of delay and crunch, and received very positive reviews from critics and players. It sold over 3 million copies by 2020 and received several free updates and ports to other platforms. The developers also created an arcade machine version of the game in 2020. Dodge Roll is currently working on multiple projects, one of which is likely to be set in the Gungeon universe.
Here are the key facts extracted from the text:
1. Enter the Gungeon was developed by Dodge Roll, a studio formed by ex-employees of Mythic Entertainment.
2. Electronic Arts purchased Mythic Entertainment in 2006.
3. In early 2013, three employees from Mythic Entertainment, Brent Sodman, David Rubel, and Dave Crooks, joined forces to work on their own projects.
4. The team was later joined by Joe Harty, an artist, and Erica Hampson, a sound designer and Dave's partner.
5. One of the game concepts they worked on was Spin Cycle, a game they had made for an IndieSpeedRun game jam.
6. In January 2014, the team announced to their bosses at Mythic that they would be leaving by the end of the summer.
7. However, in May 2014, Mythic was closed down by EA, and the team decided to start their own studio.
8. The team invested their savings into their new studio and started working on Enter the Gungeon.
9. Dave Crooks pitched the game to Devolver Digital at E3 in June 2014, without an appointment or an entrance badge.
10. Devolver Digital agreed to partner with Dodge Roll, and the team began working on the game in earnest.
11. The game was initially set to be released in April 2015, but the release date was delayed due to the team's inexperience and the scope of the project.
12. The game was finally released on April 5, 2016, and received positive reviews from critics and players.
13. The game was a commercial success, selling over 200,000 copies in the first week and over 1 million copies after 15 months.
14. Dodge Roll released several updates for the game, including the Supply Drop update in January 2017 and the Advanced Gungeons & Draguns update in July 2018.
15. The team began working on new projects in 2019, including a potential sequel to Enter the Gungeon.
16. In April 2019, Dodge Roll announced that they were working on multiple projects, with one of them likely to be set in the Gungeon universe.
17. The team has learned many lessons from their experience developing Enter the Gungeon, including the importance of planning, time management, and seeking funding opportunities.
18. The game's soundtrack was created by Adam Drucker, also known as Doseone, and features an intense and catchy score.
19. The game's pixel art style was designed by Joe Harty, who also created many of the game's assets, including the guns and enemies.
20. The game's sound effects were created by Erica Hampson, who also worked on the game's sound design.
Note: I excluded opinions and subjective statements from the list, focusing on verifiable facts about the game's development and release.