Basement Window replacement

I have those basement escape windows where it is just a piece of glass that lays against the window sill. Doesn't seal at all and springtails are just waltzing into my basement.
1) Does someone make a window which I can replace this with that seals a little better?
2) Since it is an egress window, I guess I have to put in a full window vice those that only open half-way?
3) Any DYI articles/advice for this?
Thanks for the help!
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