I've published a terrific-audio-driver bugfix release. It fixes a no sound in tad-gui on windows bug. github.com/undisbelieve... #snesdev #spc700

SNESdev daily log 4 & 5: Failed to convert the audio driver's 65816 code to function tables. Verified the new 3 bytes per transfer loader design will work using a C++ prototype.

After months of procrastination, I have published the second half of my 2025 SNESDEV game jam postmortem. It covers my jam's timeline and my thoughts on the game's development. undisbeliever.net/blog/2026070... #snesdev

SNESdev daily log 3: Proofread the game jam postmortem and added a bunch of images to it.

SNESdev daily log 2: Wrote a lot of words about my entry to the 2025 snesdev game jam.

I've released a new version of my SNES audio driver to fix a bug that prevented sound effects from playing when the blank song is loaded. github.com/undisbelieve... #snesdev #spc700

SNESdev daily log 1: Brainstormed what I need to figure out before the game jam starts. Planned my order of operations for adding sample swapping to my audio driver. Fixed an inaudible SFX bug in my audio driver.

If it's #scanlinesunday then it would be rude not to post the first screenshot of my SNES game engine bring-up. I'm working hard to get 60fps and fill this thing with fun possibilities, ready to hit the ground running for SNES Dev Game Jam 2026.

No snesdev last night, I was feeling a bit overwhelmed. My mental task list has 5 "urgent" and 4 high-priority projects I need to complete before the end of the month. I feel like I'm pulled in multiple directions and stalled out.

Smash Bros-like prototype on SNES hardware based on the Super Boss Gaiden engine of Goldlocke. Screenshot posted on Twitter in 2019 - never came to be, but it was a fun dev session! #snesdev

SNESdev daily log 3: Started a blog post about my upcoming snesdev game jam project.

SNESdev daily log 2: Figured out how to write a basic VBlank interrupt in multiple C toolchains. Coded a lag frame counter. Modified my example to change the background colour every second.

I'm doing prepwork for the 2026 snesdev game jam. I want to make a small game in C. To hedge my bets I'm going to be using 4 different C compilers. To help motivate me, I'm restarting my SNESdev daily log.

SNESdev daily log 1: Figured out how to compile SNES C code with llvm-mos.

I've published a new version of my homebrew SNES audio driver. The samples tab has been completely redesigned. It can automatically tune newly created samples and allows the user to drag & drop an external file into the samples list. github.com/undisbelieve... #snesdev #spc700

I've been rewriting the samples tab in my audio driver's GUI. It's not complete, I've still got restore the sample analyser, restore the test sample widgets and add a few more quality-of-life features.

One of my long-term goals is to make a full-sized SNES game. Space Rescue Squad and unnamed-snes-game are a great starting point. I'm not going to abandon them unless something major changes in my life.

My goals for the rest of the year have changed: * Improve my writing skills * Document what I'm doing as I do it * Exercise more often * Procrastinate less often (avoid distractions, remember to do urgent tasks, etc) * Add sample swapping to my audio driver * Write a small SNES game in C

Sometimes I take breaks from gamedev and when I do, I often do more gamedev. Here's a quick and dirty experiment running on the SNES. A future Rynn game maybe? Ok back to real work. 🤭 #snes #nes #16bit #jrpg #gamedev #indiegames #retrogames

Some of you may have seen my C3 thread about it, but for those who haven't- I'm developing a new, CLI-based debugging SPC player called Apollo! It features a ARAM/DSP memory viewer, SPC700 code debugger, breakpoints, Script700 support & FIR EQ visualizer Give it a try! github.com/jimmy-dsi/ap...

Introducing version 0.3.0 of the Terrific Audio Driver. github.com/undisbelieve... This version does not add new features, instead I made 2 major back end changes: The audio driver has been ported to spc-700 assembly and tad-gui now uses the cpal crate to play audio. #snesdev #spc700

I took the Super Game Boy code I made for Petal Crash GBC and made a code example that shows off booting custom SNES code and then having the Game Boy side send files to the SNES as needed. Code and ROM (under "releases"): code.novasquirrel.com/Maffi/SuperG... #snesdev #gbdev #gamedev

The Super Game Boy part of my Petal Crash GBC port ran into an obstacle since the original game uses screen shake effects that only apply to one board, and the normal SNES solution (mode 2) would've required giving up either the cool 12x12 blocks or the background. I found a cool creative solution.

Here's a Super Game Boy enhancement driver I need to finish some day. It uses a circular buffer in VRAM to communicate with the SNES at 60fps via a combination of command data and per-frame data, rather than joypad packets. This particular version allowed a Game Boy game to reuse Game Boy Color art.

Getting back into snesdev with a new side project, an spc700 assembler. This assembler will make compiling Terrific Audio Driver a lot easier. I'm off to a good start, it can currently assemble a single instruction inside unit tests. #snesdev

New blog post: A wordy overview and retrospective on the homebrew SNES game engine I used for my 2025 SNESDEV game jam submission. undisbeliever.net/blog/2026021... #snesdev

Happy New Year, everybody :-) Following the success of last year's Game Jam, there will be another SNESDEV Game Jam in the summer of 2026. SNES homebrewers, get ready and prepare your tools for the next round! itch.io/jam/snes-dev... #snesdev2026, #gamedev, #gamejam, #homebrew

Announcing v0.2.0 of my homebrew SNES audio driver. This release stabilises the 2 breaking changes I made to the audio driver months ago (in the beta releases). It also fixes a lot of small bugs and items I had on my ever growing todo list. github.com/undisbelieve... #snesdev #spc700

PVSnesLib 4.5 is now available! Thanks to the community for the help. You can download it here: github.com/alekmaul/pvs... #retrogaming #snes #pvsneslib #homebrew #indiedev

I have released a 2nd beta of my SNES audio driver. It adds transpose analysis to the compiler to detect all out-of-range notes caused by driver transpose. I've also rewritten the timer code to increase the max bytecode sleep duration to 65535 ticks. github.com/undisbelieve... #snesdev #spc700

A new SNES soundtrack work of mine in development, game developed by @kannagichan.bsky.social ... www.youtube.com/watch?v=P3mX... #snesdev #indiedev #snes #sfc #スーパーファミコン #スーファミ

I have released a new public beta build of my SNES homebrew audio driver. github.com/undisbelieve... This beta moves `_` and `__` transpose MML commands out of the MML compiler and into the audio driver, so the semitone offset will affect loops and subroutines. #snesdev #spc700

I've added a transpose setting to my SNES audio driver. Subroutines and loops can now be played with different semitone offsets. Bytecode assembly only, the MML compiler changes have not been coded yet. #snesdev #spc700

Extending my Furnace to Terrific Audio Driver project so that it can also accept Impulse Tracker files wasn't too difficult, though there's still work to do and everything needs to be tested. Internally it converts the file to Furnace-style representation and then converts again to MML.

Here's my #SNES mouse-controlled shooter game so far! It's definitely far from being 100% done, but it's in a state where I feel comfortable showing it off and having people try it out! Multiplayer and regular controllers are supported. forums.nesdev.org/viewtopic.ph... #gamedev #snesdev #homebrew

My entry in the 2025 SNESDEV game jam is complete. undisbeliever.itch.io/space-rescue... #snesdev #snes

Here's an upcoming #SNES beat'em up that might be worth keeping on you radar: "Triple Impact" By DigiFox It's still somewhat early in development but so far it's already looking really atmospheric with some solid sprite work. #retro #homebrew #indiedev #retrodev #SNESDev #gaming #retrogaming

Today I drew the player sprite in safety orange. The deadline for the game jam is going to be tight (5 days to go). #snesdev

Added two enemies that shoot projectiles to my game. The only enemy left to code is the boss. #snesdev

Yesterday I finished a playtest build of my SNES game I'm one step closer to releasing a game. Lots of stuff I've got to do in 2 weeks: Enemy projectiles, enemy graphics, boss, title screen, game over screen, pause screen, credits, and more levels. #snesdev

SNESdev daily log 1: Finished drawing the tileset. I ran out of time (if I'm to meet my self-imposed deadlines) but this is a good place to stop. I wasn't able to come up with a left/right wall design, it's just a 2px black border. (Pink is transparent and dark-magenta are unused tiles).

SNESdev daily log 1: Coded a security bot enemy. Coded an enemy that jumps towards the player.

#snesdev daily log 2 - 9: - Added player projectiles, a melee attack and multiple gravity constants. - Added room transitions, d-pad activated (up press) script triggers and doors. - Played SMB2 (SNES) for inspiration. - Reviewed and rewrote the game's todo list. - Added semitransparent water.

Sorry for the lack of updates. I've been without Internet for the last week and do not know when it will be fixed. On the plus side - I have been documenting and re-analysing my automatic joypad tests (1 or 2 a day) instead of watching YouTube.

I really wanted my small SNES game to have smarter pathfinding than just moving randomly or just using atan2. I looked at some 90s game dev magazines for advice but it looks like Dijkstra maps work great and let me reuse work across many enemies if I want. #gamedev #snesdev #homebrew

SNESdev daily log 1: Found the motivation to overcome my procrastination. Added a player melee attack to the game.

You can get the ROM at supermidipak.itch.io/super-midi-p...

No snesdev last night. I got overwhelmed by the amount of stuff I have to do over the next two months. Time to reset the snesdev daily log counter.

Recently on my small #SNES mouse game, I've been working on implementing enemies, and I have a whole bunch of silly ideas. Now it feels significantly more game-like (though I still need to implement player/enemy collision so there's actual risk). #gamedev #snesdev #homebrew

SNESdev daily log 5 & 6 & 7: Added anti-gravity to the base enemy. Coded an enemy that avoids ledges.