It will come as no surprise to anyone that has been reading the tech news that FrontierVille, the newest game from Zynga, is at the top of this week’s list of Facebook gainers by daily active users. The company released metrics yesterday claiming five million DAU in just two weeks, as well as 10 million created homesteads, 550 million tasks completed, and several other stats. (We took note of the growth on Monday.)

The catch is that Zynga’s claim of five million DAU is likely only technically correct. When a game first launches, its brand-new users are counted as DAU — after all, they used the application within the past day. But, inevitably, a number of these new users never come back. The standard percentage of DAU out of all monthly active users is between 20 and 30 percent for most games; FrontierVille’s still comes in at over 50 percent, a portion that will likely fall as the player base matures. Of course, if the game continues growing like it has been, both the DAU and MAU counts will end up far higher than they are today.

But even without the nice, round number of five million, FrontierVille’s growth has still been fantastic. Facebook’s own public stats, captured below by AppData, show the new game capturing many times the new DAU of the next-closest app:

	Name	DAU	Gain	Gain, %
1.	FrontierVille	4,430,143	+3,178,204	+253.86
2.	Gift Creator	298,049	+295,524	+11,703.92
3.	Birthday Cards	1,037,891	+246,221	+31.10
4.	Restaurant City	2,784,088	+149,633	+5.68
5.	EA SPORTS FIFA Superstars	554,798	+123,813	+28.73
6.	Ninja Saga	1,082,210	+120,269	+12.50
7.	Baking Life	481,087	+66,957	+16.17
8.	Fashion World	255,581	+62,952	+32.68
9.	Evony	118,502	+61,736	+108.76
10.	Hug Me	149,816	+57,165	+61.70
11.	Monster World	205,946	+56,279	+37.60
12.	Zoo Kingdom	92,654	+49,221	+113.33
13.	Name Analyzer	62,546	+43,585	+229.87
14.	JibJab	43,983	+42,231	+2,410.45
15.	Mall World	648,051	+40,279	+6.63
16.	Pool Master	218,313	+37,205	+20.54
17.	GooBox – Jeux Gratuits	338,719	+35,325	+11.64
18.	Crazy Cow Music Quiz	209,425	+33,350	+18.94
19.	Bola	696,509	+31,382	+4.72
20.	Jumping Dog	64,756	+31,379	+94.01

Restaurant City, an older game by Electronic Arts, is very slowly declining over time; we often see large apps in its position temporarily recover DAU. Below it is EA SPORTS FIFA Superstars, by the same company, a soccer team management game that we expect to continue growing at least until mid-July, when the World Cup ends.

The two EA titles have picked up a significant number of DAU, but growth down the rest of the list is pretty average. Ninja Saga, the first of the rest, is impressive for its continued growth; most other games that were released last December have long since stopped gaining users. However, Saga is a bit deeper than the average game, with multiple RPG elements and some synchronous play.

Baking Life and Fashion World are, though released by two different developers, inseparable. The pair has been moving up and down the charts in tandem for about a month now. Fashion World is actually a bit newer, and thus smaller, but both games also share a concept, that of store management.