Addicting core game loop, but it's kind of a mess. Clearly heavily vibe-coded, but that's not strictly a bad thing.
Some ideas for improvement:
- Add Fitness value to team selection view to easily be able to identify players that need a rest.
- Add Fitness threshold for auto-pick (e.g. minimum 65) so auto-pick doesn't pick tired players. This can be user-settable, or just something sensible.
- On in-game live ratings view, show the positions for each active player. Otherwise, it's impossible to know how to pick a substitute. Consider using a version of the team selection view here to view the players in formation.
- Allow user to rename players (name and nickname)
- Allow user to select tactical approach at start of game, not just halftime. Consider some additional/different options that are more relevant at the start. (e.g. "keep shape" doesn't make sense.)
- Consider fewer teams/games in bottom leagues.
- Current quest system is very broken, needs more context awareness. (e.g. I got a quest to have 650,000 GBP by match day 20 of my first season.)
- Consider adding ability to reject or negotiate quests. Or a system where they are optional, with lower rewards and no penalties for failure, but the user can choose to commit to one or more at the start of the season, which increases both the reward and adds a failure penalty.
- If auto-save fails, warn the user. And perhaps allow a save to localStorage option in case of network disconnection (I lost 3 hours of play due to this.)
There's plenty more but these are a good start. You have the kernel of a fun game here!