Martijn Folmer
@martijnfolmer.bsky.social
Dutch roboticist by day | indie game dev by night
I post updates of my video game development and other nerdy obsessions
Please check out and wishlist
Broom and Boom : s.team/a/3673790
It Digs Up : s.team/a/3554000
#GameDev #indiedev #solodev #gamemaker
I post updates of my video game development and other nerdy obsessions
Please check out and wishlist
Broom and Boom : s.team/a/3673790
It Digs Up : s.team/a/3554000
#GameDev #indiedev #solodev #gamemaker
Been working on the visuals for the giant goblin mech. Next steps are the goblin king pilot in its chest and for each limb to move and attack independently
Consider a wishlist : s.team/a/3673790
#gamedev #art #pixelart #indiedev #wishlistwednesday
Consider a wishlist : s.team/a/3673790
#gamedev #art #pixelart #indiedev #wishlistwednesday
November 12, 2025 at 7:49 PM
Been working on the visuals for the giant goblin mech. Next steps are the goblin king pilot in its chest and for each limb to move and attack independently
Consider a wishlist : s.team/a/3673790
#gamedev #art #pixelart #indiedev #wishlistwednesday
Consider a wishlist : s.team/a/3673790
#gamedev #art #pixelart #indiedev #wishlistwednesday
Been working on Broommancy ,the magic spell that turns your broom-like (in this case, a giant sponge) into a bullet and increases your collision damage
I like the colorful trail it leaves behind
Consider a wishlist : s.team/a/3673790
#Gamedev #indiedev #wishlistwednesday
I like the colorful trail it leaves behind
Consider a wishlist : s.team/a/3673790
#Gamedev #indiedev #wishlistwednesday
November 5, 2025 at 7:10 PM
Been working on Broommancy ,the magic spell that turns your broom-like (in this case, a giant sponge) into a bullet and increases your collision damage
I like the colorful trail it leaves behind
Consider a wishlist : s.team/a/3673790
#Gamedev #indiedev #wishlistwednesday
I like the colorful trail it leaves behind
Consider a wishlist : s.team/a/3673790
#Gamedev #indiedev #wishlistwednesday
There are 10 000 combos (10 of spells, spirit animals, weapons and brooms each) in my game, meaning some edge cases that need a little extra code
One of them is the throwable shield combined with the spell that turns all bullets into fireballs
Hence, the exploding fire shield
#GameDev #IndieDev
One of them is the throwable shield combined with the spell that turns all bullets into fireballs
Hence, the exploding fire shield
#GameDev #IndieDev
November 3, 2025 at 4:01 PM
Making a first pass at the final enemy
It's a giant mechanical goblin, with the goblin king in its torso, its center protected by destructible limbs
Never made a boss enemy before. Complexity goes up, which seems fair for the culmination of the game
#gamedev #indiedev #screenshotsaturday
It's a giant mechanical goblin, with the goblin king in its torso, its center protected by destructible limbs
Never made a boss enemy before. Complexity goes up, which seems fair for the culmination of the game
#gamedev #indiedev #screenshotsaturday
November 1, 2025 at 3:18 PM
Making a first pass at the final enemy
It's a giant mechanical goblin, with the goblin king in its torso, its center protected by destructible limbs
Never made a boss enemy before. Complexity goes up, which seems fair for the culmination of the game
#gamedev #indiedev #screenshotsaturday
It's a giant mechanical goblin, with the goblin king in its torso, its center protected by destructible limbs
Never made a boss enemy before. Complexity goes up, which seems fair for the culmination of the game
#gamedev #indiedev #screenshotsaturday
Was flipping through my sketchbook, found one of my first idea sketches for what would become Broom and Boom.
It all started with the thought 'what if witches on brooms, but guns?'. Fast-forward half year later, I'm getting ready for release
This feeling is good.
#art #gamedev #indiedev
It all started with the thought 'what if witches on brooms, but guns?'. Fast-forward half year later, I'm getting ready for release
This feeling is good.
#art #gamedev #indiedev
October 28, 2025 at 7:30 PM
For #screenshotsaturday, let me show an unlockable customization combo for the Witch
The minigun, with Bulletmancy (turns bullets to fireballs), spirit animal Clippy (increase fire rate) and the mop and bucket (absorb enemy health on kill)
Game balance at its finest
#gamedev #indiedev #gamemaker
The minigun, with Bulletmancy (turns bullets to fireballs), spirit animal Clippy (increase fire rate) and the mop and bucket (absorb enemy health on kill)
Game balance at its finest
#gamedev #indiedev #gamemaker
October 25, 2025 at 11:47 AM
For #screenshotsaturday, let me show an unlockable customization combo for the Witch
The minigun, with Bulletmancy (turns bullets to fireballs), spirit animal Clippy (increase fire rate) and the mop and bucket (absorb enemy health on kill)
Game balance at its finest
#gamedev #indiedev #gamemaker
The minigun, with Bulletmancy (turns bullets to fireballs), spirit animal Clippy (increase fire rate) and the mop and bucket (absorb enemy health on kill)
Game balance at its finest
#gamedev #indiedev #gamemaker
My game sprite practice, number 2 through 5.
Like most #gamedev skills I had to learn, I just started doing it under the assumption that practice will make perfect
Which is fairly unstructured, so I'm open to any suggestions of people on how you go about getting better at #pixelart
Like most #gamedev skills I had to learn, I just started doing it under the assumption that practice will make perfect
Which is fairly unstructured, so I'm open to any suggestions of people on how you go about getting better at #pixelart
October 24, 2025 at 8:37 PM
Making the 8th spell in my game, Chromamancy. Basically a zappy, multicolored mine
Consider wishlisting if you think zapping goblins on brooms sounds like a good time : s.team/a/3673790
#wishlistwednesday #GameDev #IndieDev #solodev
Consider wishlisting if you think zapping goblins on brooms sounds like a good time : s.team/a/3673790
#wishlistwednesday #GameDev #IndieDev #solodev
October 22, 2025 at 6:22 PM
Making the 8th spell in my game, Chromamancy. Basically a zappy, multicolored mine
Consider wishlisting if you think zapping goblins on brooms sounds like a good time : s.team/a/3673790
#wishlistwednesday #GameDev #IndieDev #solodev
Consider wishlisting if you think zapping goblins on brooms sounds like a good time : s.team/a/3673790
#wishlistwednesday #GameDev #IndieDev #solodev
Sometimes, you play a game that says the exact words you need to hear at that point in your life
For me, that is Dungeons of Hinterberg right now. Rarely have I connected with a player character as strongly
Please take care of yourself
Also bonus points, the game has a good dog
#gamedev #art
For me, that is Dungeons of Hinterberg right now. Rarely have I connected with a player character as strongly
Please take care of yourself
Also bonus points, the game has a good dog
#gamedev #art
October 19, 2025 at 1:09 PM
Working on the final weapon unlock for the witch, the AC130. Use a laser to lock onto goblins and call down a strike
I love doing #indiedev
#GameDev #SoloDev #Screenshotsaturday
I love doing #indiedev
#GameDev #SoloDev #Screenshotsaturday
October 18, 2025 at 3:16 PM
Working on the final weapon unlock for the witch, the AC130. Use a laser to lock onto goblins and call down a strike
I love doing #indiedev
#GameDev #SoloDev #Screenshotsaturday
I love doing #indiedev
#GameDev #SoloDev #Screenshotsaturday
Trying to get better at #pixelart for gamedev purposes. Starting small. Getting to grips with aseprite, downloading a palette from lospec, finding objects in my house to practice shading on
October 16, 2025 at 4:18 PM
Trying to get better at #pixelart for gamedev purposes. Starting small. Getting to grips with aseprite, downloading a palette from lospec, finding objects in my house to practice shading on
Thank you for 800 followers!
To celebrate, here is the witch having 800 cackles!
I got a demo out for #steamnextfest, consider checking it out and giving it a wishlist if cackling on broom-likes appeals to you s.team/a/4051030
#gamedev #solodev #gamemaker #indiedev
To celebrate, here is the witch having 800 cackles!
I got a demo out for #steamnextfest, consider checking it out and giving it a wishlist if cackling on broom-likes appeals to you s.team/a/4051030
#gamedev #solodev #gamemaker #indiedev
October 14, 2025 at 5:49 PM
Thank you for 800 followers!
To celebrate, here is the witch having 800 cackles!
I got a demo out for #steamnextfest, consider checking it out and giving it a wishlist if cackling on broom-likes appeals to you s.team/a/4051030
#gamedev #solodev #gamemaker #indiedev
To celebrate, here is the witch having 800 cackles!
I got a demo out for #steamnextfest, consider checking it out and giving it a wishlist if cackling on broom-likes appeals to you s.team/a/4051030
#gamedev #solodev #gamemaker #indiedev
Made a first pass at the 7th spell you can unlock, summoning a circle of goblin seeking knifes
It needs some more work. Perhaps fly with the player for a bit, some streaks in the sky as they home in, definitely more visible impact
#gamedev #indiedev #gamemaker #solodev
It needs some more work. Perhaps fly with the player for a bit, some streaks in the sky as they home in, definitely more visible impact
#gamedev #indiedev #gamemaker #solodev
October 12, 2025 at 8:09 PM
Made a first pass at the 7th spell you can unlock, summoning a circle of goblin seeking knifes
It needs some more work. Perhaps fly with the player for a bit, some streaks in the sky as they home in, definitely more visible impact
#gamedev #indiedev #gamemaker #solodev
It needs some more work. Perhaps fly with the player for a bit, some streaks in the sky as they home in, definitely more visible impact
#gamedev #indiedev #gamemaker #solodev
Broom and Boom will be participating in the upcoming #SteamNextFest !
The demo is already out, so give it a try if soaring through the skies, blasting goblins on broom-likes appeals to you : s.team/a/4051030
#WishlistWednesday #GameDev #IndieDev
The demo is already out, so give it a try if soaring through the skies, blasting goblins on broom-likes appeals to you : s.team/a/4051030
#WishlistWednesday #GameDev #IndieDev
October 8, 2025 at 5:44 PM
Broom and Boom will be participating in the upcoming #SteamNextFest !
The demo is already out, so give it a try if soaring through the skies, blasting goblins on broom-likes appeals to you : s.team/a/4051030
#WishlistWednesday #GameDev #IndieDev
The demo is already out, so give it a try if soaring through the skies, blasting goblins on broom-likes appeals to you : s.team/a/4051030
#WishlistWednesday #GameDev #IndieDev
Ran the breda #singelloop today, a half marathon. Feeling pretty good about myself right now
Going to keep training for my first full marathon in Rotterdam in april💪
Going to keep training for my first full marathon in Rotterdam in april💪
October 5, 2025 at 5:10 PM
Ran the breda #singelloop today, a half marathon. Feeling pretty good about myself right now
Going to keep training for my first full marathon in Rotterdam in april💪
Going to keep training for my first full marathon in Rotterdam in april💪
After finishing the demo for 'Broom and Boom', I can now continue with the development of the game itself.
The joy of #indiedev is that ideas like 'a witch in a bucket and mop, with a minigun' can be implemented just because you want it to exist
#GameDev #SoloDev #Screenshotsaturday
The joy of #indiedev is that ideas like 'a witch in a bucket and mop, with a minigun' can be implemented just because you want it to exist
#GameDev #SoloDev #Screenshotsaturday
October 4, 2025 at 6:24 PM
After finishing the demo for 'Broom and Boom', I can now continue with the development of the game itself.
The joy of #indiedev is that ideas like 'a witch in a bucket and mop, with a minigun' can be implemented just because you want it to exist
#GameDev #SoloDev #Screenshotsaturday
The joy of #indiedev is that ideas like 'a witch in a bucket and mop, with a minigun' can be implemented just because you want it to exist
#GameDev #SoloDev #Screenshotsaturday
I'm brainstorming games I want to make after 'Broom and Boom', but for every idea I need to get better at #art. So I'm going to make an effort to practice a bunch
Also, due to some pavlovian response, any knight I draw inevitably ends up vaguely resembling Shovel Knight
#gamedev #pixelart #indiedev
Also, due to some pavlovian response, any knight I draw inevitably ends up vaguely resembling Shovel Knight
#gamedev #pixelart #indiedev
October 3, 2025 at 11:13 AM
This is a special #wishlistwednesday for me, because it is the first time I got a demo out for people to try!
Please consider checking it out and let me know what you think : s.team/a/4051030
Please consider checking it out and let me know what you think : s.team/a/4051030
October 1, 2025 at 6:53 PM
This is a special #wishlistwednesday for me, because it is the first time I got a demo out for people to try!
Please consider checking it out and let me know what you think : s.team/a/4051030
Please consider checking it out and let me know what you think : s.team/a/4051030
Been working hard on getting the demo for Broom and Boom ready for the upcoming #steamnextfest, and I have finally released it! I'm both nervous and exited to share it with people
Consider checking it out : s.team/a/4051030
#GameDev #SoloDev #IndieDev #Gamemaker
Consider checking it out : s.team/a/4051030
#GameDev #SoloDev #IndieDev #Gamemaker
September 30, 2025 at 7:45 PM
Been working hard on getting the demo for Broom and Boom ready for the upcoming #steamnextfest, and I have finally released it! I'm both nervous and exited to share it with people
Consider checking it out : s.team/a/4051030
#GameDev #SoloDev #IndieDev #Gamemaker
Consider checking it out : s.team/a/4051030
#GameDev #SoloDev #IndieDev #Gamemaker
Often, bugfixing is making improvements to mechanics, preventing crashes, observing AI behaviours, etc.
And sometimes it is checking that the game still functions if the player doesn't press any buttons for a good while
#GameDev #IndieDev #solodev #gamemaker
And sometimes it is checking that the game still functions if the player doesn't press any buttons for a good while
#GameDev #IndieDev #solodev #gamemaker
September 25, 2025 at 3:24 PM
Often, bugfixing is making improvements to mechanics, preventing crashes, observing AI behaviours, etc.
And sometimes it is checking that the game still functions if the player doesn't press any buttons for a good while
#GameDev #IndieDev #solodev #gamemaker
And sometimes it is checking that the game still functions if the player doesn't press any buttons for a good while
#GameDev #IndieDev #solodev #gamemaker
I made a new trailer with updated visuals for Broom and Boom, to coincide with the demo release next week. I look forward to people being able to play it
Consider a wishlist if you like what you see : s.team/a/3673790
#TrailerTuesday #GameDev #SoloDev #GameMaker
Consider a wishlist if you like what you see : s.team/a/3673790
#TrailerTuesday #GameDev #SoloDev #GameMaker
September 23, 2025 at 4:47 PM
I made a new trailer with updated visuals for Broom and Boom, to coincide with the demo release next week. I look forward to people being able to play it
Consider a wishlist if you like what you see : s.team/a/3673790
#TrailerTuesday #GameDev #SoloDev #GameMaker
Consider a wishlist if you like what you see : s.team/a/3673790
#TrailerTuesday #GameDev #SoloDev #GameMaker
Had issues with goblins flying into you from off screen. So now I made some arrows that point where non-visible enemies are
It removes some uncertainty, but helps with planning aerial maneuvers, which ultimately serves the game experience I think
#GameDev #ScreenShotSaturday #IndieDev #solodev
It removes some uncertainty, but helps with planning aerial maneuvers, which ultimately serves the game experience I think
#GameDev #ScreenShotSaturday #IndieDev #solodev
September 20, 2025 at 8:26 PM
Had issues with goblins flying into you from off screen. So now I made some arrows that point where non-visible enemies are
It removes some uncertainty, but helps with planning aerial maneuvers, which ultimately serves the game experience I think
#GameDev #ScreenShotSaturday #IndieDev #solodev
It removes some uncertainty, but helps with planning aerial maneuvers, which ultimately serves the game experience I think
#GameDev #ScreenShotSaturday #IndieDev #solodev
Just played a feature complete version of my demo for the first time. Milestone feels good
It is about half an hour long if you want to unlock everything, like the robot vacuum, chainshield and chronomancy
Consider a wishlist : s.team/a/3673790
#gamemaker #indiedev #gamedev #wishlistwednesday
It is about half an hour long if you want to unlock everything, like the robot vacuum, chainshield and chronomancy
Consider a wishlist : s.team/a/3673790
#gamemaker #indiedev #gamedev #wishlistwednesday
September 17, 2025 at 5:13 PM
Just played a feature complete version of my demo for the first time. Milestone feels good
It is about half an hour long if you want to unlock everything, like the robot vacuum, chainshield and chronomancy
Consider a wishlist : s.team/a/3673790
#gamemaker #indiedev #gamedev #wishlistwednesday
It is about half an hour long if you want to unlock everything, like the robot vacuum, chainshield and chronomancy
Consider a wishlist : s.team/a/3673790
#gamemaker #indiedev #gamedev #wishlistwednesday
The witch heals by cackling (obviously). Cackling prevents you from accelerating with your broom, so you start dropping down
Doesn't prevent you from firing your gun in freefall though
Please consider a wishlist : s.team/a/3673790
#GameDev #ScreenShotSaturday #IndieDev #solodev
Doesn't prevent you from firing your gun in freefall though
Please consider a wishlist : s.team/a/3673790
#GameDev #ScreenShotSaturday #IndieDev #solodev
September 13, 2025 at 4:02 PM
The witch heals by cackling (obviously). Cackling prevents you from accelerating with your broom, so you start dropping down
Doesn't prevent you from firing your gun in freefall though
Please consider a wishlist : s.team/a/3673790
#GameDev #ScreenShotSaturday #IndieDev #solodev
Doesn't prevent you from firing your gun in freefall though
Please consider a wishlist : s.team/a/3673790
#GameDev #ScreenShotSaturday #IndieDev #solodev