<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?ni msambazaji wa programu steam na half-life, counter-strike, portal, day of defeat, team fortress, left 4 dead, na dota mfululizo.  <response>: it is the developer of the software distribution platform steam and the half-life, counter-strike, portal, day of defeat, team fortress, left 4 dead, that took 3 seconds from wiki 