SPI often published similar but different games under the same name. For example, two editions of ARMADA were produced, the second correcting the poorly-written rules of the first. Both versions were similar; the second edition was merely a re-development of the previous game.
However, sometimes the name used for an older game was re-used for a newer one. For example, there were two different games published under the title KURSK. The games were in no way similar, except that they both dealt with the battle of the same name. By the time the second KURSK was published, the older game had been long out of print and, in any event, was no longer considered state-of-the-art.
In the listings that follow, slightly different versions of the same game are referred to as "First Edition," "Second Edition," and so on. Entirely different games published under the same name are referred to as "NAME (I)," NAME (II)," and so on.
Please note that some games contain Roman numerals as part of their name. For example, SPI published two entirely different products called MODERN BATTLES QUAD and MODERN BATTLES QUAD II. The use of a Roman number in this case does not imply the existence of a second game with the same name as the first; when the Roman numeral appears without parentheses, it is part of the game's name.
I have, in confused or uncertain cases, been as generous as possible in extending design and development credit. For example, Frank Davis should really be considered the primary designer of FREDERICK THE GREAT, but Ed Curran is also listed in the credits, and is therefore listed here. As another example, the first four SPI "capsule" games were listed as being "codeveloped" by the three designers involved plus Dave Werden. Although the designers worked closely, I would not say that, for example, my contribution to STARGATE really merits claiming I codeveloped the game. Nonetheless, these four persons are listed as developers in the rules, and are therefore listed as such here.
Games are alphabetized. Phrases such as "BATTLE OF" are not included in alphabetization -- i.e., BATTLE FOR FRANCE is listed under "F." Note that the same applies to grammatical articles (THE, A, LA, EL, etc.). Note also that number names (e.g., 1918) are alphabetized as if they were spelled in full (i.e., 1918 would be listed under "N").