Chaotix Recompiled builds on Emulation King

Chaotix Recompiled v0.15.19

Thu, 05 Nov 2026 00:00:00 +0000

for Windows, for Android

The game now tells you when a new version is out (#90, PR #132).

How it works: at start, the game asks GitHub once whether a newer release is out. This runs in the background, so a slow or missing connection never holds up the game. If a newer one is out, the title screen says so, and NEW VERSION 0.x.y appears right under START GAME. Pick it to open that release’s page with the downloads.
What is sent: only that one request. Nothing about you or your game is sent, and nothing is downloaded or installed by itself. On Android the system always asks before an APK is installed, and the iOS build is installed by hand.
Turning it off: OPTIONS > EXTRAS > CHECK FOR UPDATES. It is on by default, and the change takes effect at the next start.

This version doesn’t show the notice yet, since it is the latest. You’ll first see it when the next release comes out.

Validation:

Windows: 0 warnings; all 146 CTest cases pass, including new tests for reading and comparing versions. A build asked GitHub for real and found nothing newer. With CHECK FOR UPDATES off, it made no request.
Lockstep: all 33 sweep runs with random input are bit-identical.
macOS (M1): 0 warnings; all 146 CTest cases pass; lockstep is bit-identical on arm64. The packaged macOS app asked GitHub for real (through the system’s own networking) and found nothing newer than 0.15.19.
Linux: 0 warnings; all 146 CTest cases pass. The packaged build asked GitHub for real too.
Packages: the packaged Windows and Linux builds pass the startup tests.
Android: on an AYN Thor, a test build calling itself 0.15.17 asked GitHub for real. It showed NEW VERSION 0.15.18 under START GAME, and picking it opened the release page in the browser. Both 0.15.19 APKs install over 0.15.18 and run at full speed (60.0 and 59.9 fps; the game’s sound was off for this run). The menu stays on the title screen.

Downloads: the Windows x64 zip, the Linux x64 tar.gz, the macOS arm64 zip, the iOS .ipa, and two Android APKs: arm64-v8a/x86_64 (the usual one) and armeabi-v7a (32-bit ARM). Both APKs use version code 58 and the same signing certificate as 0.15.18, so they update in place.

You must supply your own Knuckles’ Chaotix (Japan, USA) ROM. No ROM image or game assets are included.

Download it from Emulation King

Chaotix Recompiled v0.15.16

Sun, 01 Nov 2026 00:00:00 +0000

for Android, for Windows

This release lets you bind the left and right triggers to the game’s buttons. The request came from CaptainLibrary: some 6-button pads report their C and Z buttons as triggers, so they couldn’t be used for jumping.

Triggers in CONTROLS (#113, PR #114). Some 6-button pads, such as the 8BitDo M30 and the Retro-Bit Mega Drive / Saturn pads, send C and Z as the right and left triggers, and their buttons can’t be remapped. Before, the game only listened for buttons, so C and Z did nothing.
- In CONTROLS, pick a gamepad page, choose a button such as C JUMP, and pull the trigger. The row then reads RIGHT TRIGGER or LEFT TRIGGER.
- A trigger counts as pressed past half way, so resting a finger on it does nothing.
- Fast-forward and rewind start on the triggers. When you give a trigger to a game button, it is taken off fast-forward or rewind, so one pull does one thing. FAST FORWARD PAD and the state and rewind pad choices skip inputs the game already uses.

Validation:

Windows: all 146 CTest cases pass, including new tests on an SDL virtual gamepad (pulling the triggers presses C and Z; light pressure doesn’t) and on the binding page.
Lockstep: all 33 sweep runs with random input are bit-identical.
macOS (M1): all 146 CTest cases pass; lockstep is bit-identical on arm64.
Linux: all 146 CTest cases pass.
Packages: the packaged Windows and Linux builds pass the startup tests.
Android: both APKs install over 0.15.15 on an AYN Thor (Android 13) and run at full speed (59.8 fps). The menu stays on the title screen.
Not tried with a physical M30 or Retro-Bit pad; the trigger press is checked with SDL’s virtual gamepad.

Downloads: the Windows x64 zip, the Linux x64 tar.gz, the macOS arm64 zip, the iOS .ipa, and two Android APKs: arm64-v8a/x86_64 (the usual one) and armeabi-v7a (32-bit ARM). Both APKs use version code 55 and the same signing certificate as 0.15.15, so they update in place.

You must supply your own Knuckles’ Chaotix (Japan, USA) ROM. No ROM image or game assets are included.

Download it from Emulation King

Chaotix Recompiled v0.15.18

Sun, 01 Nov 2026 00:00:00 +0000

for Android, for Windows

This release fixes five bugs found in an internal review of the code. Each one was reproduced on the real game first, then checked again after the fix with the same steps.

SOUND on/off takes effect at once (#119, PR #125). OPTIONS → SOUND → SOUND used to wait for the next start: turned OFF, the game kept playing; started OFF and turned ON, it stayed silent. It now switches immediately. While SOUND is off the game goes on making its sound in the background without playing it, so music from mods picks up at the right place when SOUND comes back on.
Touch: a button no longer sticks after the menu (#120, PR #128). The bug: hold a direction, open the menu with another finger, lift the first finger while the menu is open. The direction stayed held after the menu closed. Lifting a finger now always lets go of its button.
Touch: TOUCH PAD OFF really turns the controls off (#124, PR #129). OFF used to hide the on-screen buttons only after the next touch, and the hidden buttons, the menu button included, still responded. They now disappear as soon as you leave the menu and ignore touches. ON now shows the controls at once, too.
A music mod file the game cannot play is skipped (#122, PR #126). An unusable file in Mods/Music (not a WAV, or ADPCM) made that piece silent every time. Such a file is now left out at start-up, with a line in the log saying why, and the game plays its own music for that piece.
First-time setup: the file dialog is handled safely (#123, PR #127). Browse’s file dialog handed its answer back from another thread with no lock. If setup finished while the dialog was still open (a gamepad press, Enter, or a dropped file), the answer was written into memory that was already gone. It is now kept where both sides can safely reach it.

Not fixed yet: #121. Clicks in the first-time setup screen may land in the wrong place on a Retina Mac. It needs a high-density screen to reproduce, which I could not test on.

Validation:

Windows: 0 warnings; all 146 CTest cases pass.
Lockstep: all 33 sweep runs with random input are bit-identical.
macOS (M1): 0 warnings; all 146 CTest cases pass; lockstep is bit-identical on arm64.
Linux: 0 warnings; all 146 CTest cases pass.
Packages: the packaged Windows and Linux builds pass the startup tests.
Android: both APKs install over 0.15.17 on an AYN Thor (Android 13) and run at full speed (59.9 fps; the game’s sound was turned off for this run). The menu stays on the title screen. The two touch fixes were checked on the Thor with real two-finger touches, before and after.

Downloads: the Windows x64 zip, the Linux x64 tar.gz, the macOS arm64 zip, the iOS .ipa, and two Android APKs: arm64-v8a/x86_64 (the usual one) and armeabi-v7a (32-bit ARM). Both APKs use version code 57 and the same signing certificate as 0.15.17, so they update in place.

You must supply your own Knuckles’ Chaotix (Japan, USA) ROM. No ROM image or game assets are included.

Download it from Emulation King

Chaotix Recompiled v0.15.12

Fri, 30 Oct 2026 00:00:00 +0000

for Android, for Windows

Download it from Emulation King

Chaotix Recompiled v0.15.14

Fri, 30 Oct 2026 00:00:00 +0000

for Android, for Windows

This release adds the rest of the improvements from ToastedSquidBread’s review: a livelier music player, a more polished menu, and achievements you have to earn.

Keyboards in the MUSIC PLAYER (#102, PR #103). Like the game’s own SOUND TEST, the page now shows what each channel is playing as the song goes:
- a keyboard for each of FM 1-6 (red) and PSG 1-3 (green), with the key being played lit and a level bar
- a pad for each PWM drum sample, lit when struck
- GAME’S SOUND TEST on the page opens the game’s original SOUND TEST screen.
Menu polish (#96, PR #105):
- The hint lines along the bottom of the pages (“Up/Down choose …”) are in pixel letters like the rest of the menu.
- Pages fade in as they open, without slowing down your input.
- The PLAYER and PARTNER cards show each character with the arm holding the ring, as the game draws them.

Achievements you have to earn (#95, PR #106).

16 achievements are gone. They came just from playing: the first ring, entering each place, playing as each character, and the claw.

6 new ones take some doing:

award	what
WORLD TOUR	clear a level in every attraction
THE WHOLE TEAM	clear a level as every leader
NOBODY LEFT BEHIND	clear a level with every partner
SPEED DEMON	clear a level in under 30 seconds
RING HOARDER	reach a goal with 100 rings
CURTAIN CALL	see the ending

The “every …” ones build up over many sessions, and the AWARDS list shows how far you’ve got. That makes 28 achievements.
Achievements you already earned that were removed stay in your save file; they’re just no longer listed.

Validation:

Windows: all CTest cases pass, including new tests for the keyboards, the achievement sets and the character cards.
Lockstep: all 33 sweep runs with random input are bit-identical.
macOS (M1): all CTest cases pass; lockstep is bit-identical on arm64.
Linux: all Linux CTest cases pass.
Packages: the packaged Windows and Linux builds pass the startup tests.
Android: both APKs install over 0.15.13 on an AYN Thor (Android 13) and run at full speed. The menu stays on the title screen.

Downloads: the Windows x64 zip, the Linux x64 tar.gz, the macOS arm64 zip, the iOS .ipa, and two Android APKs: arm64-v8a/x86_64 (the usual one) and armeabi-v7a (32-bit ARM). Both APKs use version code 53 and the same signing certificate as 0.15.13, so they update in place.

You must supply your own Knuckles’ Chaotix (Japan, USA) ROM. No ROM image or game assets are included.

Download it from Emulation King

Chaotix Recompiled v0.15.10

Thu, 29 Oct 2026 00:00:00 +0000

for Android, for Windows

Download it from Emulation King

Chaotix Recompiled v0.15.11

Thu, 29 Oct 2026 00:00:00 +0000

for Android, for Windows

Download it from Emulation King

Chaotix Recompiled v0.15.6

Wed, 28 Oct 2026 00:00:00 +0000

for Android, for Windows

Download it from Emulation King