Crystal Sol
Build a base, harvest crystals, and command your forces in a real-time strategy game. A Crystal Sol license is required for game downloads and updates.
Windows · x64
Your next game
starts here.
Get Frostal.us Launcher to install, update, and play Crystal Sol and Undying Time. Your games and updates, in one place.
Frostal.us Launcher
For Windows PCs with an x64 processor.
Installer: FrostalLauncherSetup.exe · SHA-256 checksum
A heads-up: Windows or your browser may call this an “unrecognized” or uncommon download. Our installer is currently unsigned for Windows. Here’s what that means.
Two games. One launcher.
Undying Time
Explore a shared online world of graveyards and woodland alongside other players. Separate Undying Time access and an internet connection are required to play.
From download to launch
Install the launcher
Open
FrostalLauncherSetup.exeand follow the setup wizard. It installs for your Windows user and creates Desktop and Start menu shortcuts.Sign in to Frostal.us
Use your Frostal.us account in the launcher. Each game has its own access requirements: a Crystal Sol license or separate Undying Time access.
Choose your game
Select Crystal Sol or Undying Time from the game tabs, then install and play. Redeem a Crystal Sol license if needed; Undying Time requires its own account access.
Before you install
Windows publisher and security prompts
The Windows installer is currently unsigned by Authenticode. That means Windows cannot display a verified publisher for it. Your browser may also flag it as an uncommon download, and SmartScreen may show an “unrecognized app” warning.
An “unrecognized” warning is not the same as a malware detection. This page links to our official launcher installer on downloads.frostal.us. The filename is FrostalLauncherSetup.exe and installs Frostal.us Launcher for both games.
You can compare the file’s SHA-256 checksum with the link above to check that it matches our published download. That checks file integrity; it is not a malware scan or a verified publisher signature. Keep your security protection on. If it reports a specific threat, stop and send us the detection name so we can investigate.
Is the launcher the game?
The launcher is a separate download. After setup, sign in and install Crystal Sol or Undying Time from its game tab. Downloading the launcher does not include a game license or grant access to either game.
Does Crystal Sol access include Undying Time?
No. Each game has separate account access. A Crystal Sol license does not grant access to Undying Time. Sign in to the launcher to check your access, or send feedback if you need help.
Already have the launcher?
Open the launcher's Updates tab to get the latest Windows setup. Game updates are managed separately in the launcher.
Need help? Send feedback or browse the Crystal Sol wiki.