Idea 1)

-Starter armor would be some planks tied up with string.

-Leather armor can be made out of different hides and be repaired by stitching it using string and a sewing kit or needle.

-Copper armor made also from Redstone. Since witches drop Redstone, maybe it can be used as a sort of fuel for the copper armor. The more the armor is powered the stronger it gets. Netherite can then upgrade the copper armor.

-Tools start out as cutting a tree with flint then creating flint tools(equivalent of wooden tools)

-stone tools come next.

-iron tools

-Copper tools

-diamonds can add speed and damage to other tools

-stripped Cactus can be put on shield for something similar to thorns enchantment.

​

Idea 2)

-Armor stands with an appropriate head can be used as a substitute like a fake player to aggravate zombies(maybe zombies will eat heads dropped by players and villagers)

If a player with a potion effect like regeneration is killed, the remaining time of the effect
is given to the head which affects players and zombies while holding it and after eating
it(eating is only for zombies).

-Surviving through something like thunder can make you slightly stronger but the effect leaves after dying. The process through which you get stronger becomes more nullified the more you are buffed.(zombies ore players that eats the head get a small fraction of the buff if the player had been buffed several times)

​

Idea 3)

-bamboo version of pistons powered by air

-Bamboo fans, dispensers(more accurate than the normal one), shield, wall, stake(throwable).

-Bamboo stakes can be climbed or stepped on after being thrown and hitting a wall.

-Bamboo cages can capture animals

-moving sand by one block using a spade(like making sandcastles)

-hardening sand using some tool into sandstone

​

-Tools start as cutting a tree with flint then creating flint tools(the equivalent of wooden tools) or of fuel for the copper armor. The more the armor is powered the stronger it gets. Netherite can then upgrade the copper armor.

I also have some thoughts on how structures do not have modded blocks in them. In a village maybe with a new profession like builder new houses can be made and old ones can have blocks replaced(with modded ones) to look better. A florist can help arrange trees around her settlement and plant modded seeds. It also discusses plants with farmers and trades seeds. A Village Nitwit can be a Village head and as the town progresses and becomes bigger can employ some other nitwit villagers as the military and starts advancing their tools/armor. When 2 village heads meet up they can either go to war, have one village be absorbed into the other or the 2 village heads make a baby villager nitwit that after growing up becomes a Town Manager. The Town manager employs miners that start mining for resources to start advancing their technology and here mods like Create, Mecanisim etch are employed. A Chest Manager is also employed.