Polytopia has some mechanics that remind me of Advance Wars, so I want to bring the bright, toy-like war machines into its low-poly style.
Passive!
Placing a Monument or selecting Park acts as Hyper Repair! Heals all Units for 2Hp, then they get +1Atk/Def until the start of your next turn! Go get those Tasks done!
Unique buildings!
Your territories require more for space and improvement, reflected in decreased presence of forests and mountains. Docks, Airports, and Factories, replace Ports, Markets, and Forges, additionally Lab replaces Literacy and unlock a one-time Comm Tower in Spiritualism. Temporary versions: Support Camp, PopupPort, Airstrip, and FOB! One-per-city with placement requirements; temporary buildings take its City's army capacity.
Redefined Unit selection!
Build your army among a wide selection of combat vehicles, from Infantry and Mechs to storm opposing territories, Light and MdTanks that dominate the ground, Cruisers and Battleships which control the sea, or even various forms of aviation like BCopters and Jets to strike fear from the sky! During long, high-economy games, you'll even be able to use the MEGA TANK, CARRIERS, BOMBERS or the BLACK BOMB!
Reworked Unit deployment!
While a normal Tribe only builds their units in a City, your machines demand logistics, each type having separate buildings for bonus deployment. Support Camps can produce infantry and support vehicles. Docks and PopupPorts navy, Airports and Airstrips aviation, and Factories and FOBs tanks. Temporary Buildings only produce one Unit.
Enhanced Tech!
Though you don't start with one, every step of tech unlocks a new Unit option to produce. With some tier-3 Techs, unlock the ability to select different Super Units! Revamped Tech tree mirrors PolyPlus changes.
New Abilities!
Some others, but you'll see "FormUP" unlocked with Free Spirit, allowing for Units of the same type to sum their Hp, but you lose their action and the unit you moved to do this.