List of CPU speed sensitive games
This is a list of games that do not run properly in some ways on CPUs faster than what was common than at the game's release. 1990+ for the most part, since before that, this was more often the case than not: As a general rule, games for IBM XT computers require a 8088 4.77 MHz to play right.
Some CPUs, for example AMD K6-2 and earlier Pentium IIs have selectable multipliers, which may help with achieving the lower speeds recommended for some of the games in this article. Additionally, disabling L1/L2 caches will slow down the processor as well, e.g. a Pentium III with disabled caches will be comparable to a 386. Setmul is a software utility by forum member gerwin that allows multipliers and caches to be changed/disabled and enabled without a reboot. For certain P54C Pentiums, it also allows manipulating Test Register options for further speed control.
Also, it is possible to use a slow 3D card to slow some of the games down, especially with the early proprietary APIs; a special case here are Rendition Vérité cards, since their slow VGA performance will also bottleneck DOS games using these modes. Finally, as a last resort one may try slowdown utilities such as CPU Killer and Mo'Slo.
For games with unlisted CPU specs refer to the requirements published by the developers.
DOS
Game title | Symptoms with faster CPUs | Maximum suitable CPU | Fix available? |
---|---|---|---|
Aces of the Pacific (1992) | Slippery flight controls | 486 25 | Reduce clock speed or disable cache with Setmul |
Alien Carnage (1993) | Runtime 200 error | P233MMX; K6-2/III 500MHz; M II-433GP | Run TPPATCH on every .exe file, including harry*.-0 (except harry.-0), which are also .exe files for Pentium Pro 180 and faster; Pentium MMX 266; all PII and Celeron; K6-2/III faster than 500MHz and all AMD Geode NX and Athlon |
Alien Legacy (1994) | Runs too fast; scrolling is too fast; some bugs seem to manifest at extreme speeds resulting in certain ships disappearing without acknowledgement in the game | P150?? | Adjust the in-game speed setting first. If insufficient, reduce clock speed or disable cache with Setmul |
Alien Trilogy (1996) | Runs too fast on higher P3s | ? | |
Alone in the Dark (1992) | Animations too fast | 386DX 33 | Reduce clock speed or disable cache with Setmul |
Direction keys need to be tapped extremely fast to run | AITDRUN: https://www.vogons.org/viewtopic.php?f=7&t=37118#p326838 | ||
Arctic Adventure (1991) | Gives runtime error on P100 | ? | Reduce clock speed or disable cache with Setmul |
Betrayal at Krondor (1993) | glitching MIDI music / game freezes on startup | 486 25 (SB); 486 16 (GM) | Reduce clock speed or disable cache with Setmul |
Bubble Ghost (1987) | Runs too fast/slow | 386SX 16 | |
Carmageddon (1997) | Runs too fast | ? | |
Comanche CD (1994) | Runs too fast | ? | |
Day of the Tentacle (1993) | garbled Adlib music | 486 16 | Reduce clock speed or disable cache with Setmul |
Descent (1994) | Runs too fast with ~higher PIIs | P233 | Increase resolution or, on modern computers, use D1X-Rebirth |
Descent II (1996) | Normal game speed, but mouse sensitivity drops down on high framerates | P2 300? | On modern computers, use D2X-Rebirth |
Double Dragon (1988) | Locks up before final battle and player 2 will have fewer moves | 8088 4.77 | |
Duke Nukem II (1993) | With certain sound cards, Sound Blaster digitized sounds might not play | 486 16 | Reduce clock speed or disable cache with Setmul |
Dune (1992) | no speech | P2 333 | |
Dyna Blaster (1992) | locks up | 486 50 | |
Game Wizard 32 Pro 3.0 (cheat tool) | locks up | P3 500 | |
Halloween Harry (1993) | See Alien Carnage | ||
Hard Drivin' (1990) | Music is ear-piercing and game runs too fast overall on P100 | ? | Reduce clock speed or disable cache with Setmul |
Hi-Octane (1996) | Speed problems | P100 | |
Inca (1992) | from game's readme: "If you are running this product on a system faster than a 486-DX33, there is the possibility of graphics trashing in some parts of the game." | 486 33 | Reduce clock speed, de-turbo, or disable cache with Setmul |
Indiana Jones and the Fate of Atlantis (1993) | garbled Adlib music | 486 16 | Reduce clock speed or disable cache with Setmul |
Indiana Jones and the Last Crusade (1989) | With Adlib sound "Runtime error R6003 - integer divide by zero" when using a Sound Blaster 16 card with a 486 or faster computers | 386DX 40 (SB16); 486DX 25 | For the the 256 color VGA version: "486 Upgrade" patch. For 16 color EGA version, on older CPUs with integrated L1 cache you can turn off the L1 cache to avoid the problem. |
Jazz Jackrabbit (1994) | Runtime error 200 | P233MMX; K6-2/III 500MHz; M II-433GP | TPPATCH for Pentium Pro 180 and faster; Pentium MMX 266; all PII and Celeron; K6-2/III faster than 500MHz and all AMD Geode NX and Athlon, or reduce clock speed or disable cache with Setmul |
King's Quest VII: The Princeless Bride (1994) | Speed bug with one or two puzzles | ? | |
Knights of the Sky (1990) | Runs too fast | 386SX 20 | Reduce clock speed or disable cache with Setmul |
Lemmings 2: The Tribes (1993) | Requires HDD smaller than 504 MB (CHS limit) or else the copy protection checksum calculated by the installer is wrong | ? | |
Lotus III: The Ultimate Challenge (1992) | Crashes with invalid opcode error | P2 350 | There is fix on Vogons |
MegaRace (1993) | Speed powerups make your car speed up way too fast | P100? | Use a slower CD-ROM drive. The speed powerups speed up the car as fast as your CPU and CD drive can handle, so using a slower drive can help. |
Micro Machines 2: Turbo Tournament (1996) | ? | ? | |
Might & Magic III (1991) | Animations too fast | 486 16 | Reduce clock speed or disable cache with Setmul |
Might & Magic: World of Xeen (1994) | Flashing mouse cursor when hovering over game window, map, and char page | 486 40 | Reduce clock speed or disable cache with Setmul |
One Must Fall 2097 (1994) | Runs too fast | 486 66 | Adjust the in-game speed setting first. If insufficient, reduce clock speed or disable cache with Setmul |
Operation Stealth/James Bond 007: The Stealth Affair (1990) | OPL2 audio is extremely corrupted on P100 | 386? | Reduce clock speed or disable cache with Setmul |
Pharaoh's Tomb (1990) | Gives runtime error on P100 | ? | Reduce clock speed or disable cache with Setmul |
Qi Xiao Quan: RANMA (1990) | Special mode runs too fast. | 286 12 ? | Reduce clock speed or disable cache with Setmul |
Quarantine (1994) | Runs too fast on P3 | 486 33 ? | Use Slowdown, reduce clock speed or disable cache |
Quest for Glory III (1992) | Garbled General MIDI | 486 16 | Reduce clock speed or disable cache with Setmul |
Realms of Arkania: Blade of Destiny (1992) | Combat dialog scrolls too fast to read | fast 386 | Reduce clock speed or disable cache with Setmul |
Realms of Arkania: Star Trail (1994) | Combat dialog scrolls too fast to read | 486 33 | Reduce clock speed or disable cache with Setmul |
Red Baron (1990) | Joystick won't detect on Pentium MMX | P133 | Reduce clock speed or disable cache with Setmul |
Rise of the Dragon (1990) | Animations are too fast, in-game clock runs too fast making it borderline impossible to play the game let alone beat it | 486DX2-66? | Reduce clock speed or disable cache with Setmul |
RS-2 (1990) | Game is playable, but the graphics flicker very badly. | 286 12 ? | |
Secret of Monkey Island, The (1990) | With Adlib sound "Runtime error R6003 - integer divide by zero" when using a Sound Blaster 16 card with a 486 or faster computers | 386DX 40 (SB16); 486DX 25 | For the the 256 color VGA version: "486 Upgrade" patch. For 16 color EGA version, on older CPUs with integrated L1 cache you can turn off the L1 cache to avoid the problem. |
Garbled MT-32 music with fast CPUs | ? | ||
Sam & Max Hit the Road (1993) | Crashes on start, freezes in setup program | P133? | Reduce clock speed with Setmul |
Sid Meier's Colonization (1994) | Crashes with Integer Divide by Zero error with Pentium 200MMX | P166 | Reduce clock speed or disable cache with Setmul |
Sierra games | no sound card detection | P200 | |
Space Quest IV: Roger Wilco and The Time Rippers (1991) | Bugs every time a sequel police is on the screen | 386? | |
Space Quest V: Roger Wilco - The Next Mutation (1993) | unable to initialize audio hardware | 486 25 (SB); 486 16 (GM) | Reduce clock speed or disable cache with Setmul |
Star Control (1990) | FM sound malfunction | P150 | |
Star Control II (1992) | ? | ? | |
Super C (1990) | OPL2 audio is extremely corrupted on P100 | 386? | Reduce clock speed or disable cache with Setmul |
Syndicate (1993) | crashes at startup | P166 | Its confirmed that game is run even on C2D, Xeon 56xx without slowdowner, problem is probably elsewhere than i cpu speed. |
Terminator: Future Shock (1995) | too fast on high P2 | ? | SkyNET version |
Test Drive III (1990) | Runs too fast | 386DX 25 | Reduce clock speed or disable cache with Setmul |
Theme Park (1994) | Runs too fast | 486 66? | |
Thor's Hammer: The Trilogy (1995) | Inconsistent in-game speeds (turning around and opening doors very slow) | P3 600 | reduce clock speed or disable CPU cache |
Toonstruck (1996) | Speed bug with one or two puzzles | ? | |
Ultima Underworld (1992) | Keyboard movement too fast on fast Pentiums | 486 66 | Reduce clock speed or disable cache with Setmul |
Ultima Underworld II (1993) | Keyboard movement too fast on fast Pentiums | P60 | Reduce clock speed or disable cache with Setmul |
Ultima VI (1990) | Runs too fast, music distortion | 386DX 25 | Reduce clock speed or disable cache with Setmul |
Ultima VII: The Black Gate (1992) | Runs too fast | 486 33 [1] | Reduce clock speed, de-turbo, or disable test registers with Setmul (note: game is immune to disabling L1 cache, but not immune to de-turbo or setmul test register settings) |
Vengeance of Excalibur (1991) | OPL2 audio is extremely corrupted on a 486 DX2-66. | 386? | Reduce clock speed or disable cache with Setmul |
Vette (1989) | Sometimes doesn't start on a P100 and if it does run controls are too sensitive | ? | Reduce clock speed or disable cache with Setmul |
Warcraft: Orcs & Humans (1994) | scrolls too fast, water animation too fast, but playable | 386DX 33 | |
Warcraft II: Tides of Darkness (1995) | Scrolls too fast with PII, but playable | P133? | Battle.net Windows version works fine |
Warlords II Deluxe (1995) | Crashes on startup with fast CPUs | 486 66 | |
Wing Commander (1990) | Runs too fast | 386DX 33 | Reduce clock speed or disable cache with Setmul |
Wizardry VI: Bane of the Cosmic Forge (1990) | Runs too fast | 386DX 33 | Reduce clock speed or disable cache with Setmul |
Wizardry VII: Crusaders of the Dark Savant (1992) | "Divide Overflow Flaw/Reboot" on Pentium processors | 5x86; Nx586; MediaGXm; Geode GX1 | Pentium reboot patch for all Pentium, 5K86, 6x86, Geode NX and laters |
Worlds of Ultima: Martian Dreams (1991) | Runs too fast | 386DX 25 | Reduce clock speed or disable cache with Setmul |
Worlds of Ultima: Savage Empire (1990) | Runs too fast | 386DX 25 | Reduce clock speed or disable cache with Setmul |
X-Com UFO Defense (1994) | Scrolls too fast/ Shots fired very fast, Still very Playable | P90 | Adjust fire/scroll speed to your liking, not always effective |
Zool (1992) | ? | ? |
Windows
Game title | Symptoms with faster CPUs | Recommended CPUs | Fix available? |
---|---|---|---|
Al Unser Jr. Arcade Racing (1995) | Runs too fast | P166? | |
Atlantis: The Lost Tales (1997) | Animations are too fast, and audio can get out of sync in cutscenes. | ? | Use DXWnd to lower the framerate so that the animation speed is better. Audio may still get off sync sometimes, though. |
Betrayal In Antara (1997) | Day/Night transitions + movement too fast | P233 | GOG.com version works fine |
Cossacks: European Wars (2001) | Runs too fast in multiplayer? | ? | |
FIFA Football 2002 (2001) | Crashes to desktop | P4 2.0 | |
Final Fantasy VII (1998) | Motorcycle chase runs too fast in software rendering | ? | |
Gex: Enter the Gecko (1998) | Lack of framerate limiter may cause the game to play too fast in certain situations | ? | |
Grand Prix Legends (1998) | Runs too fast | P4 1.7 GHz | CPU patch for version 1.2 |
Havoc (1995) | Too fast on late PII | P2 300? | |
Hexplore (1998) | Crashes after a minute on fast P4 and above | P3 500? | Fix for Modern Systems |
Imperialism (1997) | World map scrolls too fast | plays fine with patch | Patch 1.1 (slight scrolling delay added) |
Interstate '76 (1997) | Broken physics? | ? | |
Jane's US Navy Fighters 97 (1996) | Runs too fast | ? | Increase resolution; Jane's Fighters Anthology version works fine |
Jeopardy (1994) | Question timer is too fast | ? | |
Lego Island (1997) | Player turns uncontrollably fast | P200 MMX | Cap FPS & limit turn rate with Lego Island Rebuilder |
Master of Orion II (1996) | Battle screen scrolls too fast, minor issue | P166? | |
Monaco GP Racing Simulation 2 (1999) | Runs too fast | P4 2.0 | |
No. 11 Downing Street: Ninja Nanny & Sherrloch Sheltie (1993) | Animations play too fast in cartoon quality mode | P100? | |
Pro Rally 2001 (2000) | hangs | P4 2.0 | Install with [2], update to 1.1, [3], may not work with AMD FX CPUs |
Sega Rally Championship (1997) | Direct3D version plays too fast | ? | |
Silver (1999) | Timing issues with a certain bell puzzle on high P4 | P3 1.0 | GOG.com version works fine |
SimCity 2000 (1995) | African Swallow mode runs as fast as the processor is capable of running, which on fast post-1990s processors can be way too fast | ? | |
SimCopter (1996) | Runs too fast/glitchy and crashes on P4 3.2 GHz/98SE | K6-2 350 | Use DXWnd to lower the framerate so that the speed is normal and prevent crashes or use SimCopterX |
Speed Busters (1999) | crashes | P4 2.0 | GOG.com version works fine |
Star Trek: Deep Space Nine: The Fallen (2000) | CPU throttling issues | ? | Use Direct3D renderer |
Star Trek Generations (1997) | Runs too fast | ? | |
Star Trek: The Next Generation: Klingon Honor Guard (1998) | Crashes to desktop in the "Advanced Options" menu, CPU throttling issues | ? | |
Streets of SimCity (1997) | ? | ? | |
TNN Outdoors Pro Hunter (1998) | ? | ? | |
Unreal (1998) | erratic speed-up/slow-down | ? | See 3rd post here, and this launcher. |
Unreal Tournament (1999) | CPU throttling, erratic speed-up/slow-down | ? | See main article for details. Also read here and here. |
Virus: The Game (1997) | Runs too fast | ? | |
Wipeout 2097/Wipeout XL (1997) | Runs too fast | ? | supposedly available |