Nonetheless, while Squad Leader progressed into "Advanced Squad Leader" (""ASL"") in 1985, other titles also appeared, none of whom managed to gain the popularity that Squad Leader/ASL had gained. Perhaps the downturn in the wargaming industry is also to blame for that, as videogame consoles and computer games became more sophisticated and offered greater appeal than previously to those who enjoyed board wargaming as an intellectual challenge. West End Games introduced "Eastern Front Tank Leader" (also designed by John Hill) in 1986, followed by "Western Front Tank Leader" in 1987 and "Desert Steel" in 1989. The same year, Avalon Hill offered up a modern tactical game in "MBT", only superficially similar to "Squad Leader" as it simulated a different era of tactical combat. Another game, "IDF", appeared in 1993 that used the same rules as MBT, changing the setting from a fictional World War Three in Germany to the Middle East and the Arab–Israeli conflicts.