Our Friday list of the top 20 fastest-growing Facebook games still under a million players, drawn from AppData, features a number of repeats from last week. The large developer Slide is most prominent, once again placing three games on the list, this time all in the top ten: Top Fish, SuperPocus and SPP Ranch!.

Take this list with a grain of salt. Facebook has some ongoing reporting problems that may be affecting rankings — some apps haven’t seen an updated MAU in five days.

	Name	MAU	Gain	Gain, %
1.	Send Glitter!	593,362	+320,966	+54.09
2.	World at War	951,116	+262,848	+27.64
3.	開心農場 2	680,743	+136,774	+20.09
4.	Mahjongg Dimensions	205,238	+124,941	+60.88
5.	Top Fish	606,527	+117,859	+19.43
6.	SuperPocus	401,640	+116,010	+28.88
7.	SCRABBLE	874,163	+104,402	+11.94
8.	Flowers for Friends	694,160	+101,584	+14.63
9.	Di la Verdad!	207,371	+96,696	+46.63
10.	SPP Ranch!	600,620	+88,313	+14.70
11.	My City	680,529	+85,865	+12.62
12.	Go to Hell	606,215	+81,932	+13.52
13.	IQ Test	610,614	+79,410	+13.00
14.	Dress Me Up	550,439	+77,953	+14.16
15.	Ciudad en el Cielo	550,873	+76,716	+13.93
16.	Bubble Town: Party Planet	383,986	+75,408	+19.64
17.	Little Rock Pool	602,974	+72,762	+12.07
18.	Fairyland	552,321	+68,278	+12.36
19.	MiniPlanet	767,670	+67,678	+8.82
20.	Bubble Island	110,421	+63,869	+57.84

Send Glitter! is just the new poke app du jour and not really a game, so we’ll skip it and call World at War the real number one entry this week. The latter app is a new game in the same style as Mafia Wars and its many clones.

These games seem to consistently do well with relatively few new features in each iteration; World at War has a handful of its own, as seen below. But despite being built by an unknown developer, the game has been growing quite quickly, so it’s worth keeping an eye on. At its current rate it will have well over a million players next week. Maybe Facebook’s global user base is really into the theme?

開心農場 2 probably gained even more players than our stats are showing; Facebook hasn’t updated its MAU in almost a week. The game the Chinese-language version of Happy Farm 2 by Five Minutes, which has also been fairly successful with the original Happy Farm, a game with 2.3 million MAU. (For a quick chuckle, check out the Google Translate version of 開心農場 2′s description.)

Mahjongg Dimensions is another version of the classic Chinese tile game, by Arkadium. The unique take is that it’s 3D mahjongg, with a stack of tiles that must be rotated to find all the matches. It’s a pretty good-looking game, although the developer seems to be having some technical problems that may be slowing growth a bit.

The last game deserving of a mention is SCRABBLE, the “official” version of the old favorite by Electronic Arts. It has been well over a year since Scrabble replaced Scrabulous (now Lexulous), which was perhaps Facebook’s first runaway game hit by an independent developer.

But the game never became very successful — either a victim of the short attention span of Facebook players, or resentment from disenfranchised Scrabulous players. Whatever the case, it appears that Scrabble’s userbase may finally be growing.