The concept of investment return rates, also known as return on investment (ROI) in online games, can be misleading. It's often used to gauge the financial gain of a experience, but the actual meaning and understanding can be subjective. However, it's generally considered a wise idea to look for games with high player return rates if you're a serious enthusiast.

1 World of Warcraft - With over 100 million registered accounts, Blizzard's massively multiplayer online role-playing game (MMORPG) remains able to retain a large player community despite its vintage status. According to a study by SuperData Research, World of Warcraft players have an average return rate of about 60 days, with an average lifetime value per player of around $1,700.

2 League of Legends - As one of the most well-known multiplayer online battle arena (MOBA) experiences, mega888 Riot Games' League of Legends has upheld a strong community since its release in 2009. According to a study by SuperData Research, League of Legends players have an average return rate of about 60 days as well.

3 PlayerUnknown's Battlegrounds (PUBG) - Another well-liked battle royale experience, PUBG has managed to gain and retain a large player base since its launch in 2017. According to a study by SuperData Research, PUBG players have an average return rate of about 50 days, with an average lifetime value per player of around $400.

4 Overwatch - Blizzard's first-person shooter Overwatch has managed to keep a unique player community since its release in 2016. According to a study by SuperData Research, Overwatch players have an average return rate of about 60 days, with an average lifetime value per player of around $600.

5 Dota 2 - Valve Corporation's multiplayer online battle arena (MOBA) Dota 2 has been one of the highest-grossing experiences on Steam since its launch in 2013. According to a study by Steam Spy, Dota 2 players have an average return rate of about 90 days, with an average lifetime value per player of around $1,200.

6 Apex Legends - Respawn Entertainment's battle royale experience Apex Legends has managed to attract a large player community since its release in 2019. According to a study by SuperData Research, Apex Legends players have an average return rate of about 60 days, with an average lifetime value per player of around $300.

7 Rocket League - Psyonix's physics-based sports experience Rocket League has kept a strong community since its launch in 2015. According to a study by Steam Spy, Rocket League players have an average return rate of about 80 days, with an average lifetime value per player of around $500.

8 Team Fortress 2 - Valve Corporation's team-based first-person shooter Team Fortress 2 has been one of the most well-loved games on Steam since its launch in 2007. According to a study by Steam Spy, Team Fortress 2 players have an average return rate of about 120 days, with an average lifetime value per player of around $600.

9 Warframe - Digital Extremes' cooperative third-person shooter Warframe has managed to draw in a dedicated player base since its launch in 2013. According to a study by Steam Spy, Warframe players have an average return rate of about 80 days, with an average lifetime value per player of around $500.

10 Guild Wars 2 - ArenaNet's massively multiplayer online role-playing game (MMORPG) Guild Wars 2 has managed to retain a large player community since its launch in 2012. According to a study by SuperData Research, Guild Wars 2 players have an average return rate of about 70 days, with an average lifetime value per player of around $600.

Keep in mind that these return rates are speculations based on different studies and might not match the real experience of players. Nonetheless, these experiences have demonstrated impressive player faithfulness and have upheld a strong community over time.