Exploration RPG Where You Level Up With Basebuilding! - Crystarise 

I'd say Crystarise is more Chibi than Moe. Moe is more about making them evoke "feelings of affection, adoration, devotion, and excitement" (yes that's as vague as it sounds) and usually extends to romance or sibling affection. Whereas Chibi is this sort of cute super-deformed approach to the style and seems to permeate everything in this game - the player character, the monsters, even the terrain to an extent. You can image search "Moe characters" versus "Chibi Characters" to see what I mean.

If you are not from the Anime community, I conmend you for looking in to it. This is closer to Chibi, more than moe, however. Moe is, usually and often, associated with cute art styles, focusing on cute girls doing cute things (a popular example being the anime K-On!). Chibi is an art style that utilizes exaggerations, such as larger heads, smaller bodies and, sometimes, rounded limbs. There are not a lot of anime that uses Chibis, as they are more used in promotional art/merchandise for all kinds of anime and manga. I suppose a rough (and bastardized) example of a Chibi would be a Funko Pop.

i think it was just because of the little bush below the mushroom.

Moe just means cute, there are many different styles in anime and they are all classified slightly different, for example shonen for bolder art, and shojo for more beautiful etc

But those are only examples so if you look into them more you may learn a lot ^^