RoF does
have torque modeled in their sim, but Rotary Engines is beyond even their flight sim engine.
I'm not so sure about that. Some people who lack rudder pedals have complained about not being able to turn the Dr1 to the left. Others have resorted to blipping the engine momentarily to turn left with the Dr1/F1.
Screw it, now I'm going to have to buy them to report back.

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Edit:
Bought the F1. Here are my impressions:
Extremely unstable in the pitch axis. There is a constant nose up tendency for which you have to compensate with elevator input (true with all WW1 fighters, but in the F1 it is extreme). Careless elevator input causes wild oscillation.
Roll rate is good, but not as good as you might expect for having ailerons on the top and bottom wings. The Albatros DV seems to roll better.
I find that to initiate a left hand turn at low speed, full rudder deflection is required (don't fly the F1 without pedals). It does have a tendency to spin more than the other aircraft, but not so much as to be a real threat if you are on top of the controls. Spin recovery seems easier than in the hapless Nieuport 28.
Anyway, those are some initial impressions. Did I mention that its turn rate is fantastic?

The addition of combat trim will make a twitchy, difficult to fly plane much more docile.