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Difference between revisions of "Chasm: The Rift"

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Revision as of 12:49, 1 June 2020

This page may require cleanup to meet basic quality standards. You can help by modifying the article. The discussion page may contain useful suggestions.

This page is for the 1997 first-person shooter. For the unrelated 2018 adventure-platformer, see Chasm.

Chasm: The Rift
Chasm: The Rift cover
Developers
Action Forms
Publishers
GT Interactive
WizardWorks Software
Megamedia Corp
Release dates
DOS September 30, 1997
Chasm: The Rift on HowLongToBeat
Chasm: The Rift on IGDB
Chasm: The Rift on MobyGames
Chasm: The Rift on Wikipedia

Key points

Originally titled Chasm: The Shadow Zone during development.[1]

Availability

Source DRM Notes Keys OS
Retail
DRM details are not known
DOS
A demo is available.

Essential improvements

Patches

Patch csmtcpip.exe is the latest version. Place file in the installation folder and run via DOSBox. This patch includes the bonus levels.

Game data

Configuration file(s) location

System Location
DOS

Save game data location

System Location
DOS

Video

Graphics feature State Notes
Widescreen resolution
Multi-monitor
Ultra-widescreen
4K Ultra HD
Field of view (FOV)
85°
Windowed
For DOSBox toggle with Alt+ Enter (see the glossary page for other workarounds).
Borderless fullscreen windowed
See the glossary page for potential workarounds.
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
For DOSBox use an unofficial build (see the glossary page for other workarounds).
60 FPS
70 fps cap
120+ FPS
High dynamic range display (HDR)

Input

Keyboard and mouse State Notes
Remapping
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).
Controller types

Audio

Audio feature State Notes
Separate volume controls
FX, CD
Surround sound
Subtitles
Closed captions
Mute on focus lost
For DOSBox change the priority background value in the DOSBox configuration file.

Issues fixed

Technical Issues

This game must be run in DOSBox as it is a DOS game. As it is a demanding 3D game within DOSBox, it requires modern processors to run at acceptable frame rates.
Mouse movement may stop working on occasion. Save and restart the game to fix.

Performance Fix

Performance Fix[citation needed]
  1. Patch the game to the latest version (csmtcpip.exe).
  2. Download this fixed .exe file
  3. Replace the PS10.exe in the installation folder with the fixed version

Notes

Without this fix the game would crash if DOSBox was set to 'dynamic CPU' mode, and without that mode the game would run at an unacceptable FPS regardless of how powerful the processor was. This patch fixed that, allowing the game to be run at 640x480 resolutions at smoother framerates.

Music does not loop (DOSBox)

Without this fix the music does not loop in DOSBox, playing only once.
Music Fix[2]
  1. Download CTRLOOP.exe and place it in the installation folder
  2. Configure DOSBox to run CTRLOOP.exe before launching the game.

Other information

API

Technical specs Supported Notes
DOS video modes

Engine reconstruction for Windows

PanzerChasm is WIP reconstruction of original engine from scratch. Supports high resolutions, widescreen, OpenGL, texture filtering, networking, both true and 2.5 perspective modes. Currently in semi-playable state. Requires original files.

System requirements

DOS
Minimum
Operating system (OS)
Processor (CPU)
System memory (RAM)
Hard disk drive (HDD)

References