Made and launched a game in 2 days, need your help to improve it and make it profitable?

A brief introduction 🚀

• 1 year ago with a friend, we wanted to play together a game called Undercover which is a Werewolf lookalike. However, we did not find any good version of this game online so we made our own ! 2 days later the game was made.
• Our main focus during the built was to make the game frictionless. In 20 seconds, the user go to our game, put his/her username and share a link to play ! No sign-in is required at the moment (maybe its was a mistake idk).
• We made the game without thinking about monetization, just having fun.
• We do not have any promotions except for a Producthunt 8 months ago

Everyone love some stats, so here you go 🙂:
(see the heading image)
Our number of daily active users (DAU) is 350, with some peak at 650.

My questions to the community

• Last year, I didn't have enough time to improve the game but as the game gained a bit of traction with recurrent users, I am thinking to improve it.
• I have plenty of ideas on how to improve the game but I do not have any experience on going further a side project, it will be much appreciated if you guys have some thoughts about the following questions please 🙏

My first question is what to focus on first, market undercovergameonline.com or improve it ?

If the answer is not to market it first, should I add the following ?

1. add account system
2. tutorial on how to play the game
3. join a game with a link
4. public lobby for play with random
5. new skins
6. rewards
7. points system
8. and many more

I'm open to any suggestion 😃

Making money

Money is not my first motivation obviously (in the top 2 🤑). For the moment, the hosting is entirely free (Thx to firebase). However, do you have some experience with monetizing a game like that ? I read many quora and reddit posts about this topic but maybe the indie hacker community have a specific view on it 😎

For now, here are my thoughts:

• Classic banner ads;
• Subscription plan with a freemium model;
• Affiliation;
• Skins shop; and
• Donation link.

For tech nerds 💻

• All the game run on firebase services
• Static hosting: Firabse hostings
• Computing: Firebase function
• Database: Firestore
• Front: React

We use the integrated websocket of the firestore package for all the realtimes changes. Not the best, but it works ! 😆

Finally, tell me what do you think about the game in the comments !!!!! Thanks !

the game: undercovergameonline.com