gistfile1.txt

Processor Information:
    Vendor:  GenuineIntel
    CPU Family:  0x6
    CPU Model:  0x3c
    CPU Stepping:  0x3
    CPU Type:  0x0
    Speed:  3600 Mhz
    8 logical processors
    4 physical processors
    HyperThreading:  Supported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Supported
    SSE42:  Supported
    
Network Information:
    Network Speed:  
    
Operating System Version:
    "Gentoo Base System release 2.2" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  4.1.9-gentoo
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11604000
    X Window Manager:  awesome
    Steam Runtime Version:  steam-runtime-release_2015-06-12
    
Video Card:
    Driver:  Intel Open Source Technology Center Mesa DRI Intel(R) Haswell Mobile x86/MMX/SSE2

    Driver Version:  3.0 Mesa 10.3.7
    OpenGL Version: 3.0
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 60 Hz
    VendorID Not Detected
    DeviceID Not Detected
    Number of Monitors:  1
    Number of Video Cards Not Detected
    Primary Display Resolution:  1920 x 1080
    Desktop Resolution: 1920 x 1080
    Primary Display Size: 13.58" x 7.64"  (15.55" diag)
                                            34.5cm x 19.4cm  (39.5cm diag)
    Primary VRAM Not Detected
    
Sound card:
    Audio device: Intel Haswell HDMI
    
Memory:
    RAM:  32070 Mb
    
Miscellaneous:
    UI Language:  English
    LANG:  en_US.UTF-8
    Microphone:  Not set
    Total Hard Disk Space Available:  102348 Mb
    Largest Free Hard Disk Block:  19447 Mb
    
Installed software:
    
Recent Failure Reports:
    


Here's an lddtree of xenonauts as well

Xenonauts.bin.x86 => /home/$USER/.local/share/Steam/steamapps/common/Xenonauts/Xenonauts.bin.x86 (interpreter => /lib/ld-linux.so.2)
    libsteam_api.so => /home/$USER/.local/share/Steam/steamapps/common/Xenonauts/lib/libsteam_api.so
    libX11.so.6 => /usr/lib32/libX11.so.6
        libxcb.so.1 => /usr/lib32/libxcb.so.1
            libXau.so.6 => /usr/lib32/libXau.so.6
            libXdmcp.so.6 => /usr/lib32/libXdmcp.so.6
    libXinerama.so.1 => /usr/lib32/libXinerama.so.1
    libXxf86vm.so.1 => /usr/lib32/libXxf86vm.so.1
    libXext.so.6 => /usr/lib32/libXext.so.6
    libdl.so.2 => /lib32/libdl.so.2
    libpthread.so.0 => /lib32/libpthread.so.0
    libGL.so.1 => /usr/lib32/libGL.so.1
        libexpat.so.1 => /usr/lib32/libexpat.so.1
        libglapi.so.0 => /usr/lib32/libglapi.so.0
        libXdamage.so.1 => /usr/lib32/libXdamage.so.1
        libXfixes.so.3 => /usr/lib32/libXfixes.so.3
        libX11-xcb.so.1 => /usr/lib32/libX11-xcb.so.1
        libxcb-glx.so.0 => /usr/lib32/libxcb-glx.so.0
        libxcb-dri2.so.0 => /usr/lib32/libxcb-dri2.so.0
        libxcb-dri3.so.0 => /usr/lib32/libxcb-dri3.so.0
        libxcb-present.so.0 => /usr/lib32/libxcb-present.so.0
        libxcb-randr.so.0 => /usr/lib32/libxcb-randr.so.0
        libxcb-xfixes.so.0 => /usr/lib32/libxcb-xfixes.so.0
        libxcb-render.so.0 => /usr/lib32/libxcb-render.so.0
        libxcb-shape.so.0 => /usr/lib32/libxcb-shape.so.0
        libxcb-sync.so.1 => /usr/lib32/libxcb-sync.so.1
        libxshmfence.so.1 => /usr/lib32/libxshmfence.so.1
        libdrm.so.2 => /usr/lib32/libdrm.so.2
    libSDL2-2.0.so.0 => /home/$USER/.local/share/Steam/steamapps/common/Xenonauts/lib/libSDL2-2.0.so.0
        librt.so.1 => /lib32/librt.so.1
    libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.8.5/32/libstdc++.so.6
    libm.so.6 => /lib32/libm.so.6
    libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.8.5/32/libgcc_s.so.1
    libc.so.6 => /lib32/libc.so.6
    

fonts I have installed
[I] media-fonts/acroread-asianfonts (9.1{tbz2}@03/30/2015): Asian and Extended Language Font Packs used by Adobe Reader
[I] media-fonts/baekmuk-fonts (2.2-r2{tbz2}@03/30/2015): Korean Baekmuk Font
[I] media-fonts/bitstream-cyberbit (2.0{tbz2}@03/30/2015): Cyberbit Unicode (including CJK) font
[I] media-fonts/corefonts (1-r7{tbz2}@05/01/2015): Microsoft's TrueType core fonts
[I] media-fonts/dejavu (2.34{tbz2}@03/30/2015): DejaVu fonts, bitstream vera with ISO-8859-2 characters
[I] media-fonts/encodings (1.0.4{tbz2}@03/30/2015): X.Org font encodings
[I] media-fonts/font-alias (1.0.3{tbz2}@03/30/2015): X.Org font aliases
[I] media-fonts/font-bitstream-100dpi (1.0.3{tbz2}@03/30/2015): X.Org Bitstream bitmap fonts
[I] media-fonts/font-mutt-misc (1.0.3{tbz2}@03/30/2015): X.Org ClearlyU fonts
[I] media-fonts/font-util (1.3.0{tbz2}@03/30/2015): X.Org font utilities
[I] media-fonts/freefonts (0.10-r3{tbz2}@03/30/2015): A Collection of Free Type1 Fonts
[I] media-fonts/intlfonts (1.2.1{tbz2}@03/30/2015): International X11 fixed fonts
[I] media-fonts/kochi-substitute (20030809-r3{tbz2}@03/30/2015): Kochi Japanese TrueType fonts with Wadalab Fonts
[I] media-fonts/liberation-fonts (2.00.1-r1{tbz2}@03/30/2015): A Helvetica/Times/Courier replacement TrueType font set, courtesy of Red Hat
[I] media-fonts/libertine (5.1.3.20110615{tbz2}@03/30/2015): Fonts from the Linux Libertine Open Fonts Project
[I] media-fonts/symbola (7.12{tbz2}@02/16/2015): Unicode font for Basic Latin, IPA Extensions, Greek, Cyrillic and many Symbol Blocks
[I] media-fonts/terminus-font (4.39-r1{tbz2}@05/01/2015): A clean fixed font for the console and X11
[I] media-fonts/urw-fonts (2.4.9{tbz2}@03/30/2015): free good quality fonts gpl'd by URW++