DuckStation vs Gamma

DuckStation is a free emulator for Sony PlayStation games, available for Android, Linux, macOS and Windows. Its hardware renderer supports D3D11, D3D12, OpenGL, Vulkan and Metal, with upscaling, texture filtering and 24-bit color among the graphics options. Enhancements include PGXP geometry precision, texture replacement, adaptive downsampling and post-processing shader chains. Play options include save states, rewind, runahead, CPU overclocking and multi-disc support, along with memory-card editing and save importing. DuckStation supports RetroAchievements and Discord Rich Presence. It accepts digital and analog controllers, rumble, and up to eight devices through multitap; GunCon and Justifier lightguns can be simulated with a mouse. Supported formats include bin/cue, MAME CHD, single-track ECM, MDS/MDF, CCD and unencrypted PBP. A PS1 or PS2 BIOS image is required but not supplied, and games are not provided. The maker says users should dump a BIOS from their own console. Desktop requirements include Windows 10/11 and macOS 13.3 or newer.

Gamma is a PlayStation 1 emulator for iOS, iPadOS, and macOS. It supports touch and gamepad controls, save states, screenshots, game importing, and games that span multiple discs. For 3D games, the App Store listing describes enhanced resolution up to 8× and widescreen options. Supported disc images include BIN/CUE, CHD, PBP, ISO, and MDS; archive formats include 7zip, ZIP, RAR, and ECM. Cheat support and RetroAchievements are also listed. Optional Gamma Sync can connect Google Drive or Dropbox to store and retrieve selected emulator data. Games, BIOS files, memory cards, save states, and controller skins normally remain on the device unless a selected feature transmits them, such as Sync or a community submission. Gamma does not include commercial PlayStation games or proprietary PlayStation BIOS files, so users are responsible for using content they have a legal right to use. It is free to download and use, though the free version may show advertising through Appodeal and its partners. Gamma Pro – Remove Ads is listed for $4.99.