Wow, that's an AMAZING idea!!! This make me remember of the movie Brother Bear... have you watched it?

3.0.5 Version: The Indians can transform into their Animal Spirit for completing missions.

And the Animal Spirits could use this system:

"AS Points

There's also now the AS (Animal Spirit) points. The more points you get, the more animals you can be. You earn AS points by killing animals, finding animal totems or achieving important missions."

Or this system:

"Animal Spirits

When you spawn as a indian, you have a Animal Spirit. For example, you can have the Bear Spirit, so you can transform yourself into a bear. Your Animal Spirit will be with you forever, and you can't change it."

What about it?

Haven't seen brother bear sounds good :) the Indians would keep the same spirit animal then you are forced to collaborate to achieve tasks. Is there folklore about an Indian that can change spirits? That could be the storyline :) The strength/abilities of the spirit could be increased by collecting totems. Great idea!

3.1.0 Version: "The Tribe Update.

The forest are full of predators. Bears, ounces, other animals. You can't survive for a long time alone. You need help. For your luck, as an Indian, you live in a tribe. You and the other members of the tribe will have to collaborate if you want to survive. And don't forget, the enemies are not only animals. White peoples can kill you also. Collect totems to increase you abillities as a bear, a fox or other animal."

Thanks!

Game war with ghost

You means, a war against ghosts? Or a war between ghosts?

A game about becoming a necromancer starting from a rejected novice, with gritty stuff like having to harvest "ingredients" by killing stuff, then throwing them into a pot and see what abomination comes out. Dont forget nasty spells and a land to conquer, all with lots of dark comedy and genre mockery.

I have only seen a game that did it in an interesting manner, and it was cancelled.

 I just had the most ingenious idea for a furry game!

Can you tell us this idea, please?

is it ok if I just have the ideas of NSFW ( lewd) game's gameplay???

Probably not. Although we encourage all forms of expression via games, we try to remain kid-friendly. There is rarely an issue with using game assets found on OGA within a NSFW game, but hosting and discussing the NSFW components themselves is discouraged. There are some anatomical (nude) sprites and models on the site, but the nudity is not for the purpose of titillation or lewdness. Sorry. :/

- An RTS game in which there is a merfolk faction that has water buildings and water infantry. It can be done using an existing engine (MegaGlest or 0ad's Pyrogenesis engine), but it would be a nightmare to balance, since they would be terrible on land and overpowered on water.

- A Baldur's Gate clone. It can be done using the GemRB engine or the Flare engine with some tweaks, but it would have to have a really cool story, and it's not easy to invent one.

- A 4x game. It would be a nightmare to program, especially the AI. I'm not aware of any FOSS engine for 4x games. 

My dream gameplay is the combine between Turn Base Strategy and Beat Em Up game. 

Summary: It is the Turn Based Strategy game where you can recruit the Army, hire the Heroes, try to rescue your heroes from the enemies' prison if they be captured.

This game included World Map, Battle Map and these Beat Em Up mission.

1/ The World Map:

The huge plain which include many cities. This is where you manage your cities, build army, hire heroes. Its manager menu include:

- Buid: upgrade your city to gain more tax and unclock new unit.

- Army: Buy your army unit.

- Heroes: pay money to research World Map, to unclock new Heroes mission ( how to hire them).

- Beat Em Up.

- Properties: Where to check everything of your. How many gold left, How many cities you have, the heroes' ability,...

2/ Battle Map: Every Army can store as much as 10 unit. These type of Units be limited,too. But Every type of unit have their own weakness and advances. The Units can't level up. 

Every Hero have their own ability ( Magic; improve ATK/DEF;...). We can combine them to every unit, to improve the Army's strength on the Battle Map.

* Different to Heroes of Might and Magic, we can't lev up the Heroes, or order them to study more magics,too. That is why we need to hire better and better heroes to help us.

3/ Beat Em Up mission:

Every Hero have his/her own Beat Em Up version ( include different fighting combo, HP,...). Have many kind of mission:

- Rescue: If a hero be captured on the battlefield, you have to send another hero fight to the enemies' camp, to rescue the captured hero.

- Dungeon clear: send your hero to clear the Dungeon, to earn money or unclock the special unit for your army system.

...

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Hm... Now, look back the gameplay, I feel it look like Heroes of Might And Magic, but combine with Beat Em Up mission and the manger system from Romance of The Three Kingdoms game. --"

Gunz, that style exists, i have played a few of those, mostly on handheld consoles:

DS:

Heroes of Mana

Spectral Force Genesis

PSP:

Generation of Chaos

(these ones up there are not exactly Beat Em Up)

XBOX: Kingdoms under fire (3D but awesome game)

Sega Saturn: Dragon Force

Actually the closest one to your dream is Kingdoms under fire(the first 2 ones), but its not 2D

thank you. I have just check these game.

Yeah, they basicly use the same idea as me. Although almost of them use RTS concept in Battle Map more than Turn Based Strategy like Fire Emblem. The only different is they don't include Beat Em Up mode.

Thank you for sharing the information. I can learn more from these game. ^^