The scope does have loopholes that allow these games to appear in the listing. In some cases, it's hard to tell whether a game should be included or excluded, but most likely they sneak in through one of the loopholes:
* "The game has a very large player base" is difficult to judge. There's plenty of metrics available, whether counting number of players in a given moment of time, counting total number of game plays, or some other means. It may also be confused with large player base, but a single statistic can be used to lever inclusion into StrategyWiki.
* Receiving non-trivial mention... on a recognized industry website. This is slightly vague, and open to interpretation. Adverts are probably trivial, but if you manage to get yourself on websites such as Destructoid.com, Slashdot, or another place with significant readership, that seems to allow inclusion.
I'm not suggesting that the policy should be converted into a solid or rigid system that uses statistics, but rather to give a better explanation of the scope.
For the individual examples provided:
* Particracy is probably off-scope, more so if it is using an IP-Address url as shown
here. While it does have a better IP address, there isn't much mention on other websites. Also, it is a single-page content, which doesn't show much depth. However, there is still a wiki available for the game, and any information on that site can be transferred once it is known to be in-scope.
* Super Mario World: The Second Reality Project Reloaded is probably off-scope. It has limited content in it's current form, and the only sub-page doesn't match the style of the guide (i.e. "The ??????" says you have to plat the game to find out.) However, it probably would be within scope of a wiki specializing in Super Mario.
* MechQuest is in-scope. They show a constant metric showing ~2000 players at a given time, and have been advertising here on StrategyWiki (and other sites.) While not a "very large player base" when compared to Adventure Quest (around ~8000), it is classified as shareware where you can purchase an account upgrade for additional features. Their upgrade cards can also be found in
stores, which is technically cheating their way in to the retail market.
* Iji was a bit of a judgement call for myself. However, since it was featured on the websites currently listed on Wikipedia and has several
videos from different users, I considered it acceptable for inclusion based on the player base. The websites that mentioned it (including jayisgames.com) were also stating that it was one of the best games of the year.