full-price commercial software. Whilst many commercial software companies produced prepackaged game software, an abundant supply of free software was also available. What is noticeable from the Commodore 64's game catalog is that a rather large selection of all C64 games were programmed non-commercially by average Commodore 64 users, with editors included in some games, e.g. Boulder Dash Construction Kit, Pinball Construction Set, SEUCK, The Quill, GameMaker. Given the accessibility of BASIC on the Commodore 64, many BASIC games were created and also ported from other computer platforms and modified for the Commodore 64. In addition, many games exist that were released as Type-in programs from numerous magazines, especially European Commodore magazines. Many books and magazines were published containing listings for games, and public domain software was developed and released from both BBS systems and public domain libraries such as "Binary Zone" in the UK. There were many classic must-have games produced on the Commodore 64, perhaps too many to mention, including versions of classic video games. Of particular note, the smash hit Impossible Mission produced by Epyx was originally designed for the Commodore 64. Epyx's multievent games (Summer Games, Winter Games, World Games, and California Games) were very popular, as well as perhaps the first driving game with split-screen dynamics, Pitstop II. Most of these games eventually made an appearance on the Commodore DTV joystick unit many years later. Other hit games such as Boulder Dash, The Sentinel, Archon, and Elite were all given Commodore 64 versions. Cassette users may remember titles such as Master of Magic, Rocketball, One Man and His Droid, and Spellbound on Mastertronic's budget labels. Other notable titles on the Commodore 64 include the Ultima and Bard's Tale role-playing game series. Hewson/Graftgold were responsible for several well-received C64 titles including Paradroid and Uridium—made famous for their metallic bas-relief styled graphic effects and addictive gameplay. System 3 produced The Last Ninja action adventure series originally on the C64. Armalyte, a groundbreaking shoot 'em up title from Thalamus Ltd, and Turrican I & II are among some of the highest rated games for the Commodore 64 (according to Zzap64, which awarded "Gold Medals" to these games). Notable game designers for the Commodore 64 are: Paul Norman, Danielle Barry (aka Dan Bunten), Andrew Braybrook, Stephen Landrum, Tim and Chris Stamper, Jeff Minter and Tony Gibson just to name a few. During the final mainstream commercial years of the Commodore