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SuperSnes9x v1.63.23 has been released, offering a portable emulator for the Super Nintendo Entertainment System based on Snes9x. Key features include Kaillera server/client support, RetroAchievements integration, S-PPU viewers, multi-controller and SDL support, along with run-ahead and color correction capabilities. Notable updates include a borderless mode for Game Boy games, an enhanced cheat engine, and a new layout option for SNES tile viewers. The interface has improved with instant screenshot capture and separated soft/hard reset functions, enhancing user experience. Overall, the release expands functionality while addressing previous performance issues.
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SuperSnes9x v1.63.23 has been launched. This is a portable emulator for the Super Nintendo Entertainment System (TM) derived from the Snes9x codebase. It is an unofficial fork of the Snes9x project.
SuperSnes9x Features:
Kaillera Server/Client
RetroAchievements
S-PPU Sprite/Tile/Tiles viewers
Multi-Controller support
SDL Support
Run-Ahead Support
Color Correction Support
Advanced Cheat Search / Cheat Editor
SuperSnes9x Changelog:
Game Boy / Super Game Boy
Borderless BIOS-less mode — BIOS-less GB/GBC/SGB games now display at their native resolution of 160×144 instead of being framed within a 256×224 SGB border. The host scales the image to match the window as with SNES output; SGB/SGB2 BIOS mode retains the full border. Includes win32 rendering fixes to ensure that filters (FakeTV, xBRZ, Blargg NTSC) respect sub-SNES source sizes and AVI recording captures at the GB frame size.
GB cheat engine — the cheat search and editor are now compatible with BIOS-less GB/GBC/SGB games, functioning on the GB bus: native
$0000–$FFFF addressing supporting banked CGB WRAM, cart SRAM banks, HRAM, and physical ROM patches. It can parse GB GameShark (01/8x/9x) and GB Game Genie (6/9-digit) codes; per-game .cht files can be loaded/saved like SNES paths. It also resolves an issue with a stale CGB WRAM window in PeekRAByte, allowing RetroAchievements to recognize banks 2–7.
GB layer toggles via SNES hotkeys — when a GB cartridge is loaded, the Graphics layer 1/2 and Sprites hotkeys now control the GB-PPU Show
Background/Window/Sprites menu toggles, with corresponding on-screen display feedback.
RetroAchievements
On-screen badge images — indicators for active challenges and progress achievements are displayed as badge images anchored
to the bottom-right (according to RA team guidelines) rather than as toast messages. Badges are fetched asynchronously and rendered as imgui quads, ensuring compatibility with all video backends without GPU texture management issues. A new “Toggle Achievements Images” menu item (enabled by default) reverts to the old toast notification behavior if desired.
Emulation / UI
Separation of Soft Reset and Hard Reset — The File→Reset Game option is replaced by two dedicated items in the Emulation menu, similar to Mesen. Hard Reset (Ctrl+Alt+R)
performs a complete power cycle that replays the SGB BIOS splash; Soft Reset (Ctrl+R) acts as the console reset button on SNES, and on GB provides a new warm reset that starts at $0100 without a splash, preserving SRAM and the SGB handshake. This new hotkey can be customized.
Instant screenshots while paused — Previously, the screenshot hotkey/menu only marked a capture to be serviced at the end of the frame. Pausing caused it to wait for the next frame. Captures now occur immediately from the last rendered frame when emulation is paused.
SNES tile viewer layout option — The layout dropdown (Normal / 8×16 same line / 16×16 same line) allows fonts and graphics stored as tile groups to be displayed unscrambled; users can select maps back through the inverse while maintaining correct tile index/address information.
Images
