If the "prepare piece" message is stuck, it usually means the site is still generating the download link or the archive is split into multiple parts (Part 1, Part 2, etc.). Make sure you have or 7-Zip installed.
If you enjoy the game, I'd recommend checking out the on Steam or GOG. It includes the full campaign, many more ant species, and much better optimization than the older v0.3 versions. Arquivo: Empires.of.the.Undergrowth.v0.30111.zi...
Upload the file to VirusTotal to check it against dozens of antivirus engines at once. 2. Extracting the "Piece" If the "prepare piece" message is stuck, it