1) Your posts are quite short. They could use a bit more details about everything: the surrounding area, the looks of enemies, etc.
2) You should put all the rules in a single post to make it easier to find them. Also, as far as I can see you never explained how the rolls work and left it to us to figure it out
3) One thing I really don’t like is that you seem to decide some things on your own. For example this post:
You decide to cast Chill on tentacles, the creature manages to partialy avoid it, but you see it's realy effective. So you decide to cast it again. While you are casting tentacles squeze Impsy again, who just stops moving, afterwards tentacles release Impsy's lifeless body and go for you. Before it manages to get to you you had a chance to cast Chill again. This time it doesn't have time to avoid it and gets it head on. But it doesn't stop it's charge. When it reaches you creature's tentacles go to grab you. While they succesfully grapple you, you have a solution for that, you just blink out. After it you cast chill again, achieving direct hit for second time. You can see it must realy hurt, as tentacle beast looks realy weakened, you can just avoid it's next grapple attempt, but casting takes 3 seconds and by standing so close tentacles would have many grapple attempts before you manage to complete cast.
What do you do?
Blink is a limited resource – Elizabeth can use it only so many times before she needs to rest, so it should not be wasted. Did she at least try to struggle free before using Blink?
The next post:
As you turn around to run from tentacles, creature uses that chance to grab you, but you quickly blink out, running for some distance, then you stop and cast chill again. This time your concetration drops, as you fear what tentacles might do to you, just enough, so that spell explodes in your hands, droping you to the floor. While you are getting yourself up tentacles catch up to you trying to grab you again, succeding again. This time you can't blink out, so you try wriggleling out, but tentacles hold you too tight. One of tentacles then ripps you raggs off you, while another one goes directly for your pussy, piercing your hymen. You fell great pain from it, so you start struggling even more, but you just can't escape. Tentacle in your pussy starts to wriggle inside you, while another tentacle goes for your ass. Struggling as hard as you can, but no effect, another tentacle goes for your mouth, sliding inside of it as you grasp for air, while other 2 move inside you. You are starting to feel good, but you still struggle, but you have far too many tentacles on you to manage that. Tentacle in your pussy that starts to reach your womb, trying to wriggle inside, cousing you great pleasure.
You still want to escape, but your attempts seem futile, will you give up or continue struggling?
Several things are wrong here:
a) The previous post says "you can just avoid it's next grapple attempt". Well, clearly you CAN’T just avoid its next grapple attempt, as this post shows. In other words the end of the previous post is misleading
b) How far is that "some distance"? It’s not clear at all
c) So Elizabeth fails her cast and falls. Then suddenly the monster reaches her and rapes her. Could she not cast another spell while down on the ground? Could she not roll to the side to avoid the attack? Why could she not get up on time? Again this brings the previous issue – what was the distance between her and the monster?
d) Related to the above two: I thought that the idea behind putting some distance between Elizabeth and the monster was to give her time to act even if she fails to kill the beast with her spell (either because she failed the cast or because the spell simply did not do enough damage). What happened was no different from the monster standing next to her: She tries to cast a spell, fails, and then the monster grabs before she can get up. The distance between her and the enemy made no difference, as far as I can see from the text.
e) This my biggest complaint. The "choice" we were given was pointless and was not a real choice, since there was nothing Elizabeth could do (thanks in part to wasting her Blink spells earlier). One of the votes even points out how there wasn’t any choice:
Biting it seems to be the only thing we can try.
If a choice can make people say "X is the only thing we can do" then the "choice" was pointless
Following Elizabeth’s rape I almost gave up on the story and now keep an eye on it just in case anything interesting happens.