Steam is well-known gaming platform ,  Installing steam client in Ubuntu 17.04 is quite simple but here are simple step by step guide to install steam in Ubuntu 17.04 .

First Method

Download Steam Client from official site and install it locally .

open steam homepagehttps://store.steampowered.com/about/ click on install steam

Install steam client

open client and install steam client

After installing click on dash and search for steam client , then opening .

Wait while steam client is downloading and installing updates

Login with your steam credentials

Alternative Method

sudo apt-get install steam libc6-i386 libgl1-mesa-dri:i386

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Helpful links

1. steam homepage  : store.steampowered.com/about/
2. steam linux troubleshooting page : https://support.steampowered.com/kb_cat.php?id=97
3. ask ubuntu steam tagged questions https://askubuntu.com/questions/tagged/steam