Keep in mind that each of the five girls is different; you will need different dating strategies on each of them.
If you prefer an action dating game which is both entertaining and captivating in the same time, Sim Girl (DNA2) is the game.
Some Dating Sims have been made into harem anime, though the result is usually nothing special due to the removal of sex and the fact that the narrative can no longer focus on any single character.
And make sure you remember all the things girls say to you as you may need that info later in these dating games for boys.
In fact, many romance games are Visual Novels, which is a much different game style.
(See for example, the difference between the Ace Attorney series, which is very close to a Visual Novel style of gameplay, and the DOA Xtreme series, which is the closest thing to a true Dating Sim with mass-market appeal in the US.) If the game plays out like a Choose Your Own Adventure, that's a Visual Novel.
The original SIM girl game is now better than ever before! This is a free game in which you have the possibility to try your dating abilities.
Packed with excitement and girls, this game offers everything you need in a SIM girl game. Test your dating skills in this free Original Sim Girl Dating game. Use your talent to find the sweetest girl, with Original Sim Girls Dating.
A thing I always enjoy on games is a good tale; and this game has a very good one.