The bottom line
Mind Over Magnet shipped on Steam after three years because Mark froze content, ranked bugs by severity, and tested until no new ones appeared. Finishing a game comes down to disciplined polish and outside help, not more features.
Key takeaways
- Shipping started with locking the content and only polishing what existed. 0:46
- The one allowed exception was a developer commentary mode, inspired by Valve's Portal and Left 4 Dead.
- Players who finish the game can replay it with speakers in some levels that play voice notes about how that part was made.
- Community testers found almost 100 bugs. 3:11
- Mashing the change polarity button could leave a platform stuck midway.
- An emailed tip from a Next Fest demo player showed that binding move to the mouse scroll wheel made Uni speed along like a jet engine.
- Scoring every bug from 1 to 5 put the game-breaking ones first. 3:57
- A 1 is a harmless visual glitch and a 5 is a critical game-breaking bug.
- Ranking the spreadsheet by score meant the worst bugs got fixed before his energy ran out.
- Some fixes created new bugs, so testing had to repeat until nothing new turned up. 4:23
- After a few weeks the testers had either found everything or got bored, with no new reports coming in.
- Only then could he build the final release and upload it to Steam.
- The game took far longer than planned and needed many people to finish. 6:14
- He announced the plan at the end of 2021, and it took three years instead of the intended shorter time.
- Help came from a composer, an artist, a lawyer, playtesters, professional developers and Patreon supporters who funded the work.
Then I could rank the spreadsheet in numerical order and make sure I started by working on the really important game-breaking stuff before running out of steam and just kind of going "eh, it'll be fine".
Mark Brown
Chapter summaries
0:00 Intro
Mind Over Magnet is a finished magnet game, and the last steps decided whether it reached the store.
- The game is built for PC and Mac. 0:06
- Its title is Mind Over Magnet.
- It only appears on Steam if the final steps all went right.
- A joke plea asks viewers to buy 16 copies for friends and everyone on their street.
- The final steps are the content freeze, the bug hunt and the upload.
0:45 The Last Feature
Developer commentary was worth breaking the freeze because it repaid the thing that sparked a career in game design.
- The commentary mode honors what first drew him to game design. 1:10
- Valve's commentary nodes opened his eyes to game design as a craft.
- That interest ran through his games journalism career into Game Maker's Toolkit.
- Valve's developers covered creating mechanics, teaching the player, guiding the eye, puzzles and play tests.
- He says it blew my mind and began a lifelong obsession.
2:43 Bug Fixing
Outside testers told to report everything surfaced far more problems than one developer would find alone.
- A volunteer team of testers hunted for every problem, big or small. 2:52
- The testers came from the GMTK Discord.
- They played through the game with a fine-tooth comb.
- Turning off magnetism just before Magnus connects made him bounce off the ceiling at an awkward angle.
- Some bugs were easy to fix. Others took much longer to root out, diagnose and solve.
5:02 Final Steps
Releasing the game is one button press, and the reaction to it comes later.
- The last step is pressing the release button in Steamworks. 5:43
- Press reviews, interviews and features were written but not yet published at recording, a week before launch.
- Results are saved for a "how did the game do" video a few weeks later.
- He hopes the coverage is positive, since the game took three years of his life.
- He jokes that he hasn't looked at the button and assumes it's green.
6:00 Making Mind Over Magnet
The finished game came out of many changes of direction and a long list of helpers.
- Release followed years of building, testing and big changes. 6:14
- Work spanned character controllers, level tools, UI, transition shaders, sound effects and puzzles.
- He changed the game's genre and its entire art style along the way.
- Prototypes, builds and demos brought feedback, bug reports and advice.
- The plan was never meant to take this long.
- Named collaborators filled in what one developer couldn't. 6:50
- Zach Jones wrote the soundtrack and Grayson Evans made the promotional art.
- Rahul Gandhi handled contracts.
- His dad animated a giant robot arm used in the World 4 background.
- TheGamingBrit suggested the name, and Sophie Stevens and Dom Harris helped with code.
- Key Unity assets were Text Animator, DoTween and Kira Lord's scene picker.
- The game runs on PC, Mac and Steam Deck. 8:33
- It fills the Steam Deck screen fully.
- A full post-mortem is promised for later.
In the growth library
Mark Brown, creator of Game Maker's Toolkit and solo developer of Mind Over Magnet. A look at the last stretch of shipping a first game: freezing content, adding a developer commentary mode, and triaging nearly 100 tester-found bugs by severity. The worth-watching part is the bug list, where mashing the polarity button or binding movement to the scroll wheel breaks the game in ways the designer never planned.
Lessons that draw on this:
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