Before downloading and installing Space Engine 0.980, ensure that your system meets the minimum requirements:

Transition to OpenGL 3.3 and implementation of a reverse z-buffer to eliminate "z-fighting" when close to objects.

Locate the setting under the "Common" section.

and various Reddit threads provide direct links to setup files hosted on Google Drive Critical Updates and Patches The most vital "update" for this specific version is Patch 0.9.8.0e (the "Ephemeris Edition"):

to view the "Legacy Versions" page from 2022–2023, where links can sometimes be manually reconstructed. Community Setup Files: SpaceEngine Wiki

Use an older GPU driver if the machine is dedicated to legacy software.

. While officially discontinued and replaced by newer versions like