It's a poor 3d remake of Fantagy General (90% of the rules are a copy, the only differences are : you control far smaller armies in FW but each troop can gain chosen particular skills when they level and mages have access to more spells).
(be aware : FW in publicities is announced with "epic battles of more than 500 units on screen" and "a map editor", and these two things are totally absent)
Fantasy General you can get on any abandonware site has a campaign 3 or 4 times longer than the total FW content, with a research system you don't have in FW, more diversity of troops and terrains and a far better system for customized battles.
Even Wesnoth, freeware inspired by fantasy general, is far richer than FW (with lots of user made campaigns and a more interesting tactic system with a choice between several attacks for each unit).
ps : I discovered dominions 2 on the masterofmagic2.com site too.