Areena.io is a cool adventure of an open-world io game that has quests and fights. But the game doesn't start right away with a fight. You will have to explore and collect equipment in the process. And any action counts because survival in the arenas is possible only after you prepare for it. Many enemies and rewards are waiting for you.

There are many more things you can do in Areena.io apart from fighting. Complete your quests, explore new places, and interact with objects on the map to get some useful items. You can find several quests in each stage that will help you get some experience and collect enough money for buying better equipment.
Quests are the safest option to progress because they can be done again and again, and you won't lose all your items. It is important to complete them in time to get money for buying armor and weapons for the arenas.
The arena fights are the final test of your skill as a player in the game. The enemy is very tough, and failure will mean that you have to start all over again since you will lose all the gains you made in the arenas if you lose. Before fighting in the arena, make sure that your character is upgraded accordingly. For players who want an easier experience in the game, there is Baby Mode, which does not give endgame bonuses.
Quests, arenas, and shop items are all you need to do to finish the game. Explore everywhere and find new types of enemies who can only be found in some parts of the map.
Move: W, A, S, D or Arrow Keys.
Interact: E.
Attack: Spacebar or Left Click.
Navigate menus: Mouse.