Totally Custom OTs
With today's OT development tools and software, you virtually have no limits on what you can make in the 'tibia' world. So why not take a blank canvas and make your own masterpiece?
Create your own story and tell it through the game. Immerse players in a projection of your visions and ideas.
Everyone's mind is different, and we can all come up with a different story, with different thoughts and ideas.
Isn't that what game development is all about? Don't worry about donations or the playerbase.
You are here to provide for the community and that should be your only goal. The community will return the favor if you deliver.
There are infinite ideas you can turn into an OT server. Why leech other people's stuff?
Come up with an idea and develop it into an OT server.
You have all the knowledge available to you on the internet.
Learn, develop, deliver.
By creating something new, you will automatically drag attention to your server. Just because it is unknown and unique, people will most likely want to at least TRY it. This is all you need.
Once they log in, they are in the world you made. If you made that world interesting enough, they will certainly stay. This is up to you and your creativity and the ability to present your content.
Some people like to choose RPG because that gives them a lot of room for writing and unveiling a grand story. Other people will settle for something less complicated and more fun. If you can't come up with anything, here are couple of ideas from me that might give you that boost of inspiration:
Racing Server - Make numerous characters and give 3 abilities to all of them. Make racing maps where they will have to out-run the others and finish all the laps. They can pick up power-ups that spawn on the map, and they can use their 3 abilities to gain advantage over the others. With each race you finish, you gain gold, and then you can use that gold to purchase upgrades for characters, for to unlock new characters for your account.
Age of Flora - Make a server where the player will be able to detect and catalog every type of plant that he sees in the gameworld. Player will gain special experience points by doing this, and advance in Florist levels. You can use these Florist levels as gameplay device that gives the player some advantage, or even makes him win the game. When you die, you can lose records from your plant catalogue.
Arena Server - Make a server where players will fight monsters in the arena. Each challenger can drop items, but also gives gold upon death so you can purchase new stuff for your char. from the vendors in the lobby.
You can also challenge other players to arena duels, as well as go into team-arenas where multiple players fight multiple monsters. There are over 500 looktypes in tibia. Think about it.
Bonus:
Rating: 10 / 10, your world, your imagination, your hands.