Silicon Dreams trilogy
... that the 1983 text adventure game Snowball, the first of the Silicon Dreams trilogy, contained over 7,000 locations?
... that the 1983 <a class="mw-redirect" href="./Text_adventure" id="mwBRE" rel="mw:WikiLink" title="Text adventure">text adventure</a> game <i id="mwBRI">Snowball</i>, the first of the <i id="mwBRM"><b id="mwBRQ"><a class="mw-redirect" href="./Silicon_Dreams_trilogy" id="mwBRU" rel="mw:WikiLink" title="Silicon Dreams trilogy">Silicon Dreams trilogy</a></b></i>, contained over 7,000 locations?