College fantasy football is not illegal. It is 100% legal anywhere in the world, with the exception of a few states. The NCAA do not publicly support fantasy football, so you won't get their endorsement, but that doesn't mean you have to play the game under the blankets in darkness.
But what is fantasy football? Fantasy football is an online game where you can create a virtual team of online real football players. You can score points, depending on how your chosen players actually perform in real life matches. People who play fantasy football use their analytic predictions and talent to determine who will win the real life matches, or who will score the most. Skill plays an important role because the results depend on the participant's knowledge. Anyone who understands football can play the game. There are no special requirements needed.
Some people may worry about fantasy football or other fantasy sports being illegal because sports gambling is. But fantasy sports are considered a “game of skill“. Sports fans use their knowledge and skill to determine which players to choose to make the strongest team. Users are choosing players that represent their own sports team, and competing against other users' sports teams to determine who has the most skill and knowledge about which players will score the most points. The users have to be knowledgeable, and adhere to statistical analysis. This means researching on past performance metrics, match-up histories, injuries, and off-season training regiments. Fantasy football players win by skill not by chance, and that is why it is different from sports gambling.
To play fantasy football, you have to really think about which players to pick by concentrating on players with the best statistics. Some may being playing for money, hence the competitiveness. There's also math to be done but there are online services that can take your league scoring system and analyze it for you. But still, you need to do do some thinking, and keep your eggs in many baskets. None of this is illegal, so you can feel safe about fantasy football.
To actually win, you need to understand player performance, make sure your teams players are playing in the real game, calculate the investment made, pick the best players from each country, create multiple teams and join multiple contests, check for promo codes, and keep up to date with new fantasy football tips. In addition, have a great team name, create rivalries, have a great strategy which may require serious planning, check the wavier wire, play for the playoffs, and don't rest. The key is recognising mistakes and acting upon them, as well as being ahead of your opponents by knowing the players and game schedules. Follow football news and sign up for update services that can keep you up with developments throughout the season. Trying to win may be tiring, but nothing about it is illegal, another reason for you to feel safe about fantasy football's legality.
Bottom line: If your fantasy football contest involves skill, knowledge and statistics to create players not all on the same team, all of which are participating in the real-world football games, then it is legal.