Tactical RPG video game on small map with one character / piece (looking for help)

Thanks for comments everyone.
I guess this system could be a bit too complicated, it seems no one seen games like this, and I need to design this game safely.
So I am totally fine if we go standard RPG route.

Levels could be defined by :
- shape & rooms & size & theme
- minimum number of monster encounters - if player plays it safe
- maximum number of monster encounters - if player plays risky
- available monsters for catching - stronger than in previous chapter
- boss monster - with weakness vs some monsters in area & with resistance vs other monsters in area
- tiles - clouds, random encounter chance, treasure,boss,key,locked doors, story,traps,heal stations, teleports

Clouds hide the spots on the level so player doesn't know exactly what to expect from start. Here I got idea to maybe try something like MineSweeper where player needs to think which clouded area he wants to enter, and he have some kinda detector that tells him chances of what to expect.

Types of main/side missions :
- reach spot x
- reach spots to unlock certain spot
- capture x monster
- beat the boss
- ...

SENSE OF PROGRESSION IN LEVEL MUST BE SUPER VISIBLE
-> this is super important because I want that player feels how he is working towards the goal

decisions :
- in which direction I want to explore - maybe have some mechanic for trying to find something - treasure hunting ?
- do i want to go for treasure chest ? do i want to finish side quests ?
- am I satisfied with monsters I captured or I want to try to capture more ?

After combat, monsters health doesn't recover so player needs to try to win battles in way that he doesn't lose much health. Inside of the combat, usually the creature player uses the most for attacking will also receive the most damage. While creature is not active it recovers health by amount that depends on the regeneration stat. ( during combat player can switch through 3 monsters )

ITEMS - this items can have multiple strength levels
- potion - heal full health - more player waits - more valuable it is
- revive - fallen character with 50% health
- items that affect next battle - deal 25% more damage, deal and receive 50% more damage, receive 50% less damage,

Here I got idea that maybe captured monsters could be used as items.
In any case it would be interesting if captured monsters that player doesn't use could be used as some kinda resource to survive the level or solve the puzzles.

I didn't see you suggested any game similar to what I am describing ?
Neverwinter Nights have combat on the map and player controls multiple characters. You also mentioned Pokemons, but except capturing monsters and having weakness / resistance there is not much similarity here.
I didn't get in details about combat because combat is not important here, like I said, it happens on separate screen.
Problem is the map, like I said combat doesn't happen on map it just activates on map, what we have right now is small maps where player needs to decide the order of interaction with objects, but so far with all people I talked with no one played game like that.

I checked Etrian Odyssey too, but it seems this game have big maps, lot of paths, and there is no many interactive objects or decisions, but player just avoids monsters that are walking around in paths.
But maybe this are first levels and becomes more complicated after, could you explain how it works ? I guess asking for games wasn't so good idea because it would take me way too much time to play them all.

I was working more on this, and I found solution that could work with small maps. Basically I could have dungeon objects on the map, to enter dungeon player just needs to click on it, and dungeon is basically just series of battles. Each dungeon could have description on how difficult it is, what monsters are present there, what is the reward, when the dungeon is cleared how it affects the map ( for example it could add poison status effect to all other dungeons on map ). So player would need to chose the order of entering dungeons, and this would be really important. Dungeons would also give keys that would be used to enter locked dungeons in the level. So to finish the map it wouldn't be needed that player finishes all dungeons, only few of them, and since game is about surviving, it would be super challenging to actually finish them all.

To add more to example where finishing dungeon causes poison status effect to all other dungeons, both player and all enemies would have drained health constantly during battle.
for example
Player decisions:
- do I want to leave this dungeon as the last one ?
- do I want to enter this dungeon at all ?
( since I can get keys from other dungeons too )
- would this poison status effect actually make it easier for me to clear some specific dungeons since health of enemies will drop down too ?
- how long I will stay in this dungeon, how much health I will lose ? How much health I have, how many dungeons there is, are enemies in dungeon resistant to poison, am I resistant to poison ?

So there is many factors, and I think this system have good replay value.