TBS with RPG flavor, not RPG.

I suppose you could have 'swimming' allowing the unit to move 1 square into water tiles, allowing for crossing tight island chains and lakes... rather than full water walking... jumping being a two tile battle teleport so you can jump over/behind a unit. Hunger and thirst should only be important when it's in exceptional conditions... like deserts giving you 'hunder and thirst' with whatever mechanics are appropriate - negative regeneration, becomes suffering/withered/dying after 15 turns without stopping at a city/outpost... maybe global spells could affect water and food availability such that values from scavenging are zero increasing troop upkeep for living troops, or providing abundant food decreasing upkeep costs... don't think there will ever be requirements for supply lines for food and each town having wells/pumps and aquequcts though... unless i'm mistaken it's a little bit much.