In its first few years of operation, text adventures proved to be a huge revenue stream for the company. Whereas most computer games of the era would achieve initial success and then suffer a significant drop-off in sales, Infocom titles continued to sell for years and years. Employee Tim Anderson said of their situation, "It was phenomenal – we had a basement that just printed money." By 1983 Infocom was perhaps the most dominant computer-game company; for example, all ten of its games were on the "Softsel" top 40 list of best-selling computer games for the week of December 12, 1983, with "Zork" in first place and two others in the top ten. In late 1984, management declined an offer by publisher Simon & Schuster to acquire Infocom for $28 million, far more than the board of directors's valuation of $10–12 million. In 1993, "Computer Gaming World" described this era as the "Cambridge Camelot, where the Great Underground Empire was formed".