I gotta say- the first time I opened your game I didn't know if this is gonna be good or not. Start menu? Longish instructions (but with the combat part missing)? Mid 80's PC graphics? This could have been a hit or a miss.
Fortunately- a hit!
I had three runs. First one I got defeated fairly quickly. Second- By the first "boss" (now I learned to have my stats screen open to track my health). Last time- I finished the game. And just barely! If the boss had just one more round I would have been defeated for sure! So yeah- the gameplay was engaging and exciting, even if it looked like I was trying to close a bunch of windows really fast :) Other than that the UI was intuitive and easy to navigate. I focused on fighting monsters, not interface.
The presentation fit the setting, so the simple graphics built the atmosphere. The sound also fit, but in this case I'd like a bit more that just two sounds. Maybe a bit of background music, or a little fanfare, when you beat an enemy?
As for the theme. I get how the game fit it- you had a limited disc space space, so you couldn't save every file. The thing is... it was never an issue. I used thee strongest equipment and deleted the weaker items once I figured there was no way to sell them. As for the healing items... I just used them! I only had to decrease my stats once, and since I was pretty strong it didn't bother me that much. What I'm saying is that you could have leaned into the theme a bit more.
Over all- I'd like to play a longer game like that. Or better yet- split into two layers. One like this, and another in a "real world" where you can find upgrades for your computer (saving different character builds on floppy disks... I can really see it)! Great work! Keep it up!