Fun to see someone else take a shot at a MOBA. I think 3-4 people wrote a draft now.
I quite like your idea. Having clear boundaries between parts of the game may be interesting, but it may also reduce creativity.
In the Moba i played, you could choose to win in 15 minutes, "just push the enemy base and win straight away with a pushing lineup", or choose to farm and farm until you were strong enough to basically 1-shot the enemies if you were left to your own devices.
having these clear phases may reduce the flexibility within the game. Whether this is a good or bad thing remains to be seen.
I quite like the goals however. Walking around and gathering assets to increase the power of your army is very different from traditional Moba's where your champion does all the work and your creeps are basically cannon fodder.
Reduced death timers are tricky and usually only lengthen gameplay. You added a snowball effect, but usually your team will kill 4 and also have 2 killed. If you make the effect stronger than necessary and you wipe the enemies without having anyone die, you may win the game regardless of the earlier assets that were gathered. I think this will be a difficult mechanic to make the earlier gameplay feel valuable, while also aiming to wrap-up the game.
I don't think the gladiator battle makes much sense imo. You are expecting a supportive character to build like a carry and 1v1 another support. it seems silly to me to have these supports battle each other without backup. making it a 6x6 from the get go makes more sense. If you want to have the 1v1 I'd say both teams pick a representative. the captain shows off their skills.
I like the stage implementation.
I think going over the roles is too early as the players themselves will come up with a Meta based on your mechanics regardless.
Cost in fuel would need fixing as fuel is not "free" by definition. So saying you'd need the fuels for in-game is silly because then every item would cost Eth.
It would be cool to have those item-blueprints show up in a technology lab in Zero. Then you could build them in the overworld and use them in Pugna 🙂
Imo it would be cool if those items had varying stats. from +41 attack to +45 or something. The crafter would have a chance for high power weapons or such 😏