the one spell I really think is missing...

[redsocialknight]

...is a "gust of wind" spell that would do minor damage and push the target back a square. Seems an obvious fit for this system

[Chimera005ao]

...is a "gust of wind" spell that would do minor damage and push the target back a square. Seems an obvious fit for this system

I'm a bit disappointed in the spell count in general.
I DID get a hammer that had a chance to knock back when charged, so helpful.
Don't worry though, since the hammer and a few monsters clearly show that knock back is possible, people will make custom spells like the one you suggest. I made a teleport spell in the first Grimrock. The possibilities are incredible.

[AsgarZigel]

True, I was a bit disappointed as well. But apparently the modding API will be a lot better, so once they release the documentation I'll make a few custom spells.

[Neutronium Dragon]

The likely issue with making it a freely usable spell is that many enemies could be pushed into traps or over ledges, and only a few of them have the means to get back up/out again if this happens, so it would end up trivializing a lot of the otherwise-challenging battles.

[AsgarZigel]

Yeah, but at the cost of experience, since you can't fight enemies from above. Most of the challenging battles are fought by segregating enemies anyway and taking them one at a time. That just gives you one more tool to do that with.

[Saice]

Yeah, but at the cost of experience, since you can't fight enemies from above. Most of the challenging battles are fought by segregating enemies anyway and taking them one at a time. That just gives you one more tool to do that with.

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Force Field works good at doing this already.