No Combine Recipes or Fancy Upgrade Paths - This instead!
Right now, the items in Demigod are pretty boring and random. There are a ton of different items that have seemingly random bonuses. But changing it so there are all these upgrade paths that give even more seemingly random bonuses doesn't help either. It just makes the game more complex, which is fine for a real RPG but is too much for a game that you will be starting over in 45 minutes. This is supposed to be an action game, not Malblood's Inventory Adventure Game, so items should get you what you want quickly and easily so you can get back to the fighting.
How do we do this? With just three things. First, move the items so that items of a particular type give bonuses that make sense. Like these:
Boots: run speed, evade
Gloves: attack damage, attack speed
Helms:energy, energy regen
Breastplates: health, armor
Rings: health regen, crit amount & damage
Or something along those lines. So, if you want to run faster, you just go to the boot section, or if you want more armor, you go to the breastplates. Boots giving you tons of armor just doesn't make sense.
To differentiate between different breastplates, you give them different other interesting attributes. Maybe one plate makes you have more armor and health and that is all, one gives you more armor & health and also gives you thorns, a third gives you a lot of armor for a lower price but slows you down, and the last gives you a different proportion of armor and health.
Now, what if you like your current plate but want it to be better without losing your bonuses from it? Why, you upgrade it of course! Just go to the building next to the shop, pick your item from your inventory, and click "upgrade". The cost and effects would be displayed, of course. This would improve the plate's attributes without changing which attributes you get, and also without needing to hunt for a totally different item. There would probably be 3 levels - basic, improved, and best
What about artifacts? They will stay as expensive items that are already fully upgraded and come with neat effects, like life steal. Artifacts are the kinds of things you find in tombs and... well mostly tombs, but usually they are things that famous people had. A famous king's favorite ring is going to be upgraded to begin with, so it should start out with cool, more-or-less-unique effects.
This method not only reduces the number of items in the store but also makes it easier to get what you want quickly. If you want to go really really fast, you just pick several pairs of boots or upgrade your current ones, instead of searching through item lists for the 1 pair of gloves and 1 breastplate and 1 ring that increase movement speed or whatever. And if the devs only let you have one of each type of item, you pick a fast Demigod when you start
.
Thoughts?