Includes 13 arenas and a level designer to create your own underground maps. User Perspectives

There is a well-known free alternative called created by Xisumavoid. This is a Bed Wars-style map set entirely underground. Cost: Free to download for Minecraft Java Edition.

If you do decide to play the 2009 version, it is highly lightweight by modern standards:

Features buggy combat, useless iron sights, and a "psychotic" protagonist who rants about family issues while clearing tunnels.

The commercial game, , is not free . It is currently available for purchase on Steam for approximately $20 .

Searching for a "Tunnel Rats free download" usually leads to one of two places: the infamous 2009 commercial FPS game by Uwe Boll or a popular Minecraft mini-game map. 🎮 The 2009 Video Game