وعلیکم السلام ورحمتہ اللہ وبرکاتہ
For a common Muslim, the shariah's ruling is that there is nothing bad in playing these games and Islam does not forbid from leisure or making fun in permissible ways, as long as they do not get into the ways of performing obligatory duties (praying properly and in time, honor for parents etc) and provided that these games do not include anything that is haraam, like nudity, games which are based on hatred of Muslims and Islam, games etc etc.
Originally Posted by Nitro Zeus
For staunch believers ,all time wasting things become automatically meaningless and rather irritating. There is a saying from a well known Sufi Saint in his poetry " Any moment which I spend without remembrance of Allah SWT, I am a Kafir (Non believer) in those moments". But well, we cannot follow those people, for the majority of people cannot be at such levels of belief (Eemaan).
On the authority of Abu Hurayrah (may Allah be pleased with him) who said: “The Messenger of Allah (peace and blessings of Allah be upon him) said: “Part of the perfection of a person’s Islam is his leaving that which is of no concern to him.”
(A hasan hadith. Recorded by at-Tirmidhi and others in that fashion)