You do not need to download multiple copies for your friends. Only the Defuser needs a copy of the game; the Experts can view or print the free manual for free.
Official versions available on platforms like Steam or the PlayStation Store include critical updates for Steam Deck compatibility, VR support, and community-made mods. The Better Way to Play Keep.Talking.and.Nobody.Explodes.v1.8.3.rar
The game is frequently on sale. While the standard price is around $14.99, it often drops by 67% or more (as low as $4.94) on SteamDB . You do not need to download multiple copies for your friends