To start a new game in StrikeFortressBox, launch the app, and select 'New Game' from the main menu. Choose your desired game mode, customize your character if applicable, and follow the prompts to begin playing.

In StrikeFortressBox, players can choose from various character classes, each with unique abilities. Common classes include Warriors, Mages, and Archers, which offer different skills and playstyles for diverse gameplay experiences.

Improving your character's skills in StrikeFortressBox involves earning experience points (XP) through gameplay. Engage in battles, complete missions, and achieve objectives to gain XP, which you can then allocate towards upgrading skills in the character menu.

To win battles in StrikeFortressBox, utilize strategies such as positioning your character effectively, using the environment to your advantage, coordinating with teammates, and selecting the right skills for your class to counter opponents' abilities.

Crafting and upgrading items in StrikeFortressBox requires gathering resources. First, collect the necessary materials through exploration or defeating enemies. Then, access the crafting menu and follow these steps: 1. Select 'Craft' 2. Choose the item type 3. Select materials 4. Confirm to create or upgrade the item.