# Port a Nintendo DS game to platforms that still sell games > A Nintendo DS port is a rebuild of a game you own. The stylus design is the asset worth keeping, because touch is native on every phone. - URL: https://www.summerengine.com/port-a-nintendo-ds-game - Keyword: port a nintendo ds game - Related: https://www.summerengine.com/porting Porting a Nintendo DS game means rebuilding a game you own as a new project for modern hardware. The DS shipped from 2004 to roughly 2014 with two 256x192 screens, a resistive touch layer, a d-pad, and a microphone. None of that hardware exists anymore, so the port is a rebuild, not a conversion. You must own what you are porting. A DS game you developed, or one you hold a license to remake, is fair game. A retail cartridge you bought is not. No ROM dumping and no emulator wrapping is covered here. DS games port well to phones. The stylus is the closest ancestor of a touchscreen, so the input design survives the move almost intact. Summer Engine rebuilds the game as a real project you own, exports desktop builds for Steam and itch.io, and takes no royalties. iOS and Android builds need that platform's toolchain and signing (the Android SDK and a keystore, or a Mac with Xcode for iOS) and a pass on touch input. ## Stylus design is the part that transfers cleanly DS games were designed around a single point of contact on a 256x192 resistive panel. Phones use capacitive multitouch, which is more forgiving and supports gestures the DS never had. Direct taps, drags, and traced paths all map one to one. The usual adjustments are hit target size, since a fingertip covers more area than a stylus tip, and the loss of the pressure a stylus implied on small buttons. ## What to do with the second screen Both DS screens are 256x192 with a physical gap between them. On a tall phone screen, keeping both panels stacked reproduces the original framing. On desktop and TV, most ports promote the gameplay screen and convert the map, inventory, or menu screen into an overlay or a key-toggled panel. Games that used the gap as a design element, like a vertical jump across screens, need explicit layout work rather than a straight stack. ## Art, resolution, and the DS palette DS sprites were authored for a 256x192 panel with a limited palette and tight VRAM budgets. At modern resolutions, integer scaling with nearest neighbor filtering keeps them sharp. Blurred bilinear upscaling is the common mistake. DS 3D was fixed function with no shaders, so 3D DS games look flatter than expected when reproduced literally. Rebuilt lighting and higher resolution textures usually serve the game better than exact reproduction. ## Microphone, dual audio, and save data The DS microphone was used for blowing, shouting, and voice input. Mobile microphones support the same gestures, but desktop players expect an alternative binding, so pair every microphone action with a button. DS audio was 16 channels of ADPCM and PCM, and your original audio sources will re-import at higher quality. Save data moved from cartridge EEPROM and flash to ordinary files, so you can add multiple slots and cloud saves for free. ## FAQ ### Can I convert a Nintendo DS ROM into a modern game? No. There is no converter that turns a .nds ROM into an editable project. Porting a DS game means rebuilding it from your own source, art, and design. Summer Engine does not load ROM files. ### Is porting a DS game I own legal? Only if you own the rights, not just a copy. Rebuilding and publishing a DS game requires that you created it or hold a license to remake it. Buying the cartridge does not grant that right. ### Do DS games work well on phones? Yes, better than most retro ports. DS games were built around single-point touch input, which maps directly to a phone touchscreen. The main changes are larger hit targets for fingertips and a layout decision about the second screen. ### How do you handle the second screen on a TV or monitor? Promote the main gameplay screen to full screen and convert the second screen into a HUD overlay or a toggled panel. Stacking both 256x192 screens vertically also works and preserves the original framing, at the cost of large empty margins on a widescreen display. ### Will my DS pixel art look bad at 1080p? Not if you scale it correctly. Use integer scaling with nearest neighbor filtering to keep pixels crisp. Bilinear upscaling is what makes DS art look soft. Alternatively, redraw key assets at higher resolution and keep the original layout. [Rebuild your DS game](https://www.summerengine.com/download) --- ## Machine-readable resources - Site index for agents: https://www.summerengine.com/llms.txt - Full inlined content: https://www.summerengine.com/llms-full.txt - Porting catalog: https://www.summerengine.com/llms-porting.txt - Structured catalog: https://www.summerengine.com/agent-catalog.json - Sitemap: https://www.summerengine.com/sitemap.xml - Developer resources: https://www.summerengine.com/docs