# Patch & Compatibility Guide This guide highlights essential fixes, installers, and configuration tips for running Sierra-era games on modern systems. Combine these with the [[Platform Guide\|Platform Guide]] and [[Buying Guide\|Buying Guide]] for best results. ## Essential Sources - [SierraHelp.com](https://www.sierrahelp.com/) – Community-made installers, DOSBox/ScummVM wrappers, and patch mirrors for nearly every Sierra release. - [ScummVM](https://www.scummvm.org/) – Preferred runtime for AGI/SCI games; includes bug fixes, mouse enhancements, and digital audio support. - [DOSBox Staging](https://dosbox-staging.github.io/) – Modern DOSBox fork with enhanced features for games not supported by ScummVM. - [SpaceQuest.net](https://spacequest.net/) – Series-specific fixes for *Space Quest* releases. - [QuestForMoreGlory.com](https://www.questformoreglory.com/) – Hero import utilities and fan fixes for *Quest for Glory*. ## Steam Deck Compatibility The Steam Deck provides excellent compatibility for Sierra games through multiple methods: ### ScummVM on Steam Deck The **recommended approach** for most Sierra adventure games. ScummVM is available through: - **Flathub** (Desktop Mode): `flatpak install flathub org.scummvm.ScummVM` - **Discover Store**: Search "ScummVM" in Desktop Mode's Discover app - **EmuDeck**: Includes ScummVM as part of its retro gaming suite **Setup tips:** 1. Install ScummVM via Flatpak in Desktop Mode 2. Copy game files to `/home/deck/Games/ScummVM/` or similar accessible location 3. Add games to ScummVM, then add ScummVM as a non-Steam game 4. Configure controller mappings in Steam Input (ScummVM supports gamepad natively) 5. Use ScummVM's built-in "Stretch to fit" for proper display on the Deck's 1280×800 screen ### DOSBox on Steam Deck For DOS-based Sierra games not supported by ScummVM (flight sims, strategy games): - **DOSBox Staging** – Available via Flathub with improved performance and modern features - **RetroDECK/EmuDeck** – Pre-configured DOSBox setups with controller support - GOG and Steam installers generally work through Proton ### Proton/Wine for Windows Versions For Windows 95/98 Sierra titles: - Most SierraHelp installers work with **Proton Experimental** or **GE-Proton** - Use `PROTON_USE_WINED3D=1` launch option for older DirectX games - *3-D Ultra* series and Dynamix Windows games often need dgVoodoo2 bundled ### Sierra Game Compatibility Summary (Steam Deck) | Game Type | Method | Notes | |-----------|--------|-------| | AGI Games (KQ I–IV, SQ I–II, LSL 1) | ScummVM | Native controller support, excellent | | SCI16 Games (KQ V–VI, SQ III–V) | ScummVM | Excellent, all features work | | SCI32 Games (KQ VII, GK1, Phantasmagoria) | ScummVM | Good; some minor issues in Phantasmagoria | | DOS Simulations (Aces, Red Baron) | DOSBox Staging | Joystick config needed | | Windows 95/98 Titles | Proton + dgVoodoo2 | Varies by title | ## ScummVM Version & Engine Support **Current stable version:** Check [scummvm.org](https://www.scummvm.org/) for the latest release - [Download page](https://www.scummvm.org/downloads/) - [Compatibility list](https://www.scummvm.org/compatibility/) ### Sierra-Specific Engines ScummVM provides dedicated engines for Sierra games with **Excellent** compatibility ratings: **AGI Engine** – Sierra's Adventure Game Interpreter (1984–1989): - *King's Quest I–IV* (including SCI remake of KQ1) - *Space Quest I–II* - *Leisure Suit Larry 1* (original) - *Police Quest 1* (original) - *Manhunter 1–2* - *Gold Rush!* - *Mixed-Up Mother Goose* (original) **SCI Engine** – Sierra's Creative Interpreter (1988–1999): - *King's Quest V–VII* (KQ7 rated "Good") - *Space Quest III–VI* - *Leisure Suit Larry 2–7* - *Police Quest 2–4* - *Quest for Glory I–IV* (including VGA remakes) - *Gabriel Knight 1* (CD and floppy versions) - *Laura Bow 1–2* - *Conquests of Camelot/Longbow* - *EcoQuest 1–2* - *Freddy Pharkas* - *Pepper's Adventures in Time* - *Phantasmagoria 1* (Good rating) - *Lighthouse* (Good rating) - *Torin's Passage* - *Shivers 1* ### ScummVM v2026.1.0 "Like a Version" (Jan 31, 2026) **Major Sierra-relevant additions:** - **Dynamix DGDS engine** — Full support for *Rise of the Dragon*, *Heart of China*, *Willy Beamish* - **12 new engines** with 190+ new games total - New quarterly release schedule for faster updates - SDL3 support, improved Android/iOS builds **Previous fixes (2.9.x):** - Fixed QFG4 v1.0 crash in Thieves' Guild - Fixed GK1 day 5 phone lockup - Fixed KQ6 CD crash in high-resolution mode - Fixed LSL1 lockup when entering casino - Fixed SQ5 intro comet timing on modern CPUs ### Games NOT in ScummVM (Use DOSBox) - *Quest for Glory V: Dragon Fire* (3D engine) - *Gabriel Knight 2: The Beast Within* (FMV-heavy) - *Gabriel Knight 3* (3D engine) - *King's Quest: Mask of Eternity* (3D engine) - *Phantasmagoria 2* - All Dynamix flight/mech sims - *SWAT* series - *3-D Ultra* series ## DOSBox Staging **Current version:** Check [dosbox-staging.github.io](https://dosbox-staging.github.io/) for the latest release - [Download page](https://dosbox-staging.github.io/) - Modern fork with improved accuracy, pixel shaders, and built-in MIDI support ### Key Features for Sierra Games - **MT-32 emulation** – Authentic Roland sound without hardware - **FluidSynth integration** – High-quality General MIDI via soundfonts - **CRT shaders** – Period-appropriate display filters - **Dynamic CPU cycles** – Better timing for speed-sensitive games - **Mouse capture improvements** – Smoother control in adventure games Use SierraHelp's pre-configured DOSBox profiles when available. ## Windows 11 Compatibility ### Known Issues - **16-bit installers fail** – Windows 11 has no 16-bit subsystem. Use: - [OTVDM](https://github.com/nicfab/otvdm) – 16-bit thunking layer for running `SETUP.EXE` - SierraHelp's modern installers (bundle DOSBox/ScummVM) - Extract directly with 7-Zip, configure manually - **High DPI scaling** – Some SCI32 games have UI issues at 4K. Set compatibility mode to "System (Enhanced)" DPI settings - **SmartScreen warnings** – Community patches may trigger false positives; allow through Windows Security - **Defender folder exclusions** – DOSBox can be slow if Windows is scanning; exclude your games folder ### Windows 95/98 Titles on Windows 11 - Use dgVoodoo2 (v2.84.1 or later) for DirectDraw/Direct3D games - Run in Windows XP SP3 compatibility mode - For stubborn titles, consider a Windows 98 VM via VirtualBox or PCem ## macOS Compatibility (Sonoma/Sequoia) ### macOS 14 Sonoma & macOS 15 Sequoia Apple Silicon Macs require specific approaches: **ScummVM** – Native Apple Silicon version available - Download universal binary from [scummvm.org](https://www.scummvm.org/downloads/) - Works natively on M1/M2/M3/M4 Macs - No Rosetta 2 required for ScummVM itself **DOSBox Staging** – Native Apple Silicon support - Native ARM64 builds available - Excellent performance on Apple Silicon **CrossOver** (v25.1.1) – For Windows Sierra games - Full support for macOS 15 Sequoia and 14 Sonoma - Based on Wine; good for Windows 95/98 Sierra titles - [CrossOver compatibility database](https://www.codeweavers.com/compatibility) **Boxer/Boxer-CE** – macOS-native DOSBox wrapper - Now maintained as Boxer-CE for Apple Silicon - Drag-and-drop game installation ### macOS-Specific Issues - **Gatekeeper**: Right-click → Open for unsigned apps (most community installers) - **App Translocation**: Move apps out of Downloads before first run - **32-bit apps**: No longer work on macOS 10.15+ (use ScummVM/DOSBox instead of original Mac ports) ### Classic Mac Games (68k/PPC) For original Macintosh Sierra games: - **Basilisk II** – 68k Mac emulator (for early Sierra Mac ports) - **SheepShaver** – PowerPC Mac emulator (for later Mac ports) - Extract disk images and watch for QuickDraw patch requirements ## AGI/SCI Adventures - Use ScummVM for *King's Quest*, *Space Quest*, *Leisure Suit Larry*, *Police Quest*, *Quest for Glory*, and *Gabriel Knight 1*; it resolves timing bugs and adds autosave options. - If you prefer DOSBox, SierraHelp provides "NewRisingSun" timing patches and high-res icon installers for Windows. - SCI32 titles (*Phantasmagoria*, *Torin's Passage*, *Shivers*) often require CD-to-hard drive copies; SierraHelp installers automate this. ## Dynamix Sims & 3-D Ultra - *Aces*/*Red Baron* – Needs 640×480 VGA and joystick calibration; apply community patches to fix sound and high CPU usage. SierraHelp's installers package DOSBox profiles. - *Earthsiege / Starsiege* – Windows versions run on modern OSes with compatibility modes; fan patches add widescreen and multiplayer fixes. - *3-D Ultra Pinball/MiniGolf* – Seek out fan-made DirectX wrappers (dgVoodoo2) or the SierraHelp installers to fix missing FMV and audio on Windows 10+. - *Hunter Hunted / CyberGladiators* – Use the latest executable from the patch collections to avoid startup crashes on modern GPUs. ## Windows 95/98 Releases - Many Win95 titles rely on 16-bit installers; use SierraHelp or *OTVDM* (16-bit thunking layer) to run setup programs. - Apply official patches for *Phantasmagoria 2*, *Shivers 2*, *SWAT 2*, *Lighthouse*, and *Torin's Passage* to fix script bugs and missing video. - For CD-heavy titles, copy all discs to HDD and edit INI files to point to the local path (SierraHelp scripts automate this). ## Fan Remakes & Spiritual Successors - AGDI/Infamous Adventures remakes ship with modern installers but occasionally require compatibility mode on Windows 11; check their forums for hotfixes. - *SpaceVenture* updates roll out through Steam/Itch; watch the Two Guys blog for Unity patches addressing audio/video desync. - *Hero-U* and other Unity-based successors receive ongoing bug fixes—enable automatic updates on Steam/GOG. ## Console & VR Ports - *Colossal Cave 3D Adventure* – Keep Meta Quest/console firmware current; updates arrive via platform storefronts. The PC version receives patch notes on Steam. - Later Larry entries (*Wet Dreams Don't Dry/Dry Twice*) patch through console stores; check CrazyBunch's official site for changelog posts. ## Recovery Tips - Always back up GOG/Steam installers; some Activision-era titles temporarily leave storefronts. - For disk-based releases, create ISO images and use DOSBox `imgmount` to avoid CD swapping. - Keep a dedicated compatibility folder with DOSBox capture configs, ScummVM builds, and patch readme files for future reference. ## External References - [ScummVM Downloads](https://www.scummvm.org/downloads/) – Official builds for all platforms - [ScummVM Compatibility](https://www.scummvm.org/compatibility/) – Full game support list with ratings - [DOSBox Staging](https://dosbox-staging.github.io/) – Modern DOSBox fork - [SierraHelp.com](https://www.sierrahelp.com/) – Community patches and installers - [CrossOver](https://www.codeweavers.com/crossover) – Wine-based Windows compatibility layer for macOS/Linux - [dgVoodoo2](http://dege.freeweb.hu/dgVoodoo2/dgVoodoo2/) – DirectX wrapper for older Windows games - [OTVDM](https://github.com/nicfab/otvdm) – 16-bit Windows app compatibility layer