---
name: "gl-117"
section: "6"
platform: "linux"
package: "gl-117"
version: "1.3.2-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gl-117"
---

# gl-117(6)

an OpenGL action flight simulator

## NAME

gl-117 - an OpenGL action flight simulator

## SYNOPSIS

**gl-117**
 \[-dlevel -h -v\]

## DESCRIPTION

**gl-117**
 is an OpenGL and SDL based action flight simulator written in ISO C++.
 Enter the Eagle Squadron and succeed in several challanging missions
 leading though different landscapes.
 Five predefined levels of video quality and an amount of viewing ranges
 let you perfectly adjust the game to the performance of your system.
 The game provides joystick and mouse support, sound effects, and music.

## OPTIONS

*-dlevel* 
 Set the debug level to *level* in \[0..5\]. '0' means quiet and will avoid any
 output, '1' will log fatal errors causing the program to crash on stderr, '2' will
 also print exceptions on stderr, '3' will add warnings on stdout, '4'
 prints additional information (predefined) on stdout,
 and '5' gives developer specific messages on stdout.
 *-h* 
 Print a short summary on stdout and then quit immediately.
 *-v* 
 Display the version number of **gl-117** and then quit immediately.

## CONFIGURATION

**gl-117**
 uses a predefined working directory ".gl-117" in the user's home directory to
 load and store all savegame files and read the plain text configuration files "conf"
 and "conf.interface".
 If there are no config files available,
 **gl-117**
 will create them using standard settings. The contents of the files are quite
 self-explanatory.

## DOCUMENTATION

Please look at the
 **gl-117**
 user manual (gl-117.pdf) for installation instructions
 and further gameplay related descriptions.

## COPYRIGHT

**gl-117**
 is distributed under the terms of the GPL.

## AUTHORS

Thomas A. Drexl (tom.drexl@gmx.de)