What does moving system has:

• Multiplayer support(as Listen Server)
• Stamina usage for running/jumping - you can't perform some actions with low stamina
• Jumping and double(triple, etc.) jumping - there's special yellow points that can be placed in world and allow to jump more than once.
• Walking/sprinting (with leaning for them while turning)
• Crouching/sliding(player will slide if he tries to crouch while sprinting) - also there's ceiling detection: player won't stand up after sliding unless there's some space for it
• Small stopping movement after instant stop from running
• Wall running with corner system and gravity affection
• Hanging/climbing/moving on ledges/jumping from ledge to ledge with corner detection system
• Rolling and dashing
• Jump Pads
• Slippery ground that can be placed in world and where you skid and glide
• More than 20 animations

What does inventory system has:

• Multiplayer support(as Listen Server)
• Slots with drag and drop
• World object placement and taking
• Equipment slots(to put some staff on the player)
• Some items to interact with(+guide how to make your own - can find it in Documentation)

All inputs are added in Engine - Input so it's easy to understand what is what and to reassign keys.

Also death(from a fall from big height) with ragdoll and respawn system included.

Some guidelines how to work with blueprints and objects provided, also there's a lot of comments in the project itself.