Lust Friend

Lust Friend is an eroge released by 62studio on April 21, 2019, and the sequel to Lust Grimm. The game is made in RPG Maker MV, unlike its predecessor. It continues to follow Magrut as the main character, who has once again entered a world dominated by succubi.

The game can be bought from DLsite. A translation patch of it is available here.

Story
At the beginning of the game, Magrut finds himself again mysteriously transported to a world dominated by succubi. This time he has been brought here by Fess, a powerful succubus and a major villain in the previous game. She tells him that, if he helps her build a tower for her kind, she will return him to his former world.

While exploring and gathering materials, Magrut encounters a human girl named Mea, who is also from another world. After gathering the materials for the first expansion to the tower, he also encounters a mysterious blonde-haired succubus called Shandilla, who teleports away after a short conversation.

After getting all of the materials needed, Shandilla reappears and reveals that she's taken control of the tower, and dares Magrut and Fess to stop her. Magrut climbs the tower and defeats Shandilla, only for her to reveal that she was merely acting like the mastermind and Fess was simply a mind-controlled pawn. The one pulling the strings is Empress, the queen of the succubi. Empress explains that the succubus world will eventually be destroyed, and she's working to stop this by absorbing the human world (which would make all the men food for succubi and transform the women into succubi), increasing the succubus world's power so it can withstand any disaster. For this purpose, she had Magrut gather materials to get the power needed, and she also needs Magrut's body. She takes Magrut's body, killing him and forcibly closing the game.

When the game is reopened and that save reloaded, Magrut ends up at the start of the game. However, the first enemy doesn't appear and Empress (through Fess) notices his reaction and deduces that he remembers previous events. She shows him the now-ruined Fess Town and explains how she has the power to rewind time, though this hasn't allowed her to stop the destruction on her own. Then Magrut ends up in the starting house with a now-free Fess.

When Magrut return to the tower to confront Empress, there are two diverging paths depending on whether the player chooses to defeat or befriend her.

If Empress is fought and defeated, Fess tells her that she doesn't have to do this alone and that they can work together to stop the future destruction. Suddenly, they sense the same kind of magic as in the bad future. Fess tells Empress to send Magrut back to his world. Magrut reappears in his room, looks around briefly, and leaves. The credits roll, with the ruined Fess Town appearing again. Then there is a mysterious voice, talking about something that will happen the next time she and Magrut meet. Magrut reappears outside his house in Fess Town.

If Empress is befriended, the events play out similarly to if she's fought, with Fess trying to have Magrut sent back to his world. However, in this path he instead ends up in a strange dark space with Mea.

Mea apologises, saying she wants to be with him more, and transforms into Lust Nightmare, the true final boss. Lust Nightmare says she was born from Mea's desire for friends, she brought Mea to the succubus world, but Mea still couldn't find friends here, and Mea is responsible for the destruction of the succubus world. Lust Nightmare says she'll destroy this world for good, mocks Magrut for trying to get along with succubi, and declares her intention to keep him for herself. In the resulting fight, Magrut talks to Lust Nightmare until she transforms back into Mea, then hugs Mea.

Mea asks to feel Magrut's warmth, and the two of them have sex. Afterwards, Mea says that with Lust Nightmare gone, so is the magic maintaining her life, so she will soon disappear. She says that she must make amends for what she's done, but she's fine with this as her dream of having a friend has come true. Mea thanks Magrut one last time for being her friend, and bids him goodbye with a smile.

As the credits roll, Magrut reappears near Fess and Empress. The succubus world is now safe. This is the true ending of the game.

There is also an alternate bad ending. This is unlocked by defeating a large number of enemies. The more enemies the player defeats, the stranger the dialogue of the Record Keeper Fairies (the NPCs that allow the player to save). Eventually, the Record Keeper Fairy in Magrut's house will offer to give Magrut a special badge which allows him to permanently kill succubi, claiming that this will allow him to return home sooner. Fess warns him not to use this. If Magrut ignores this warning and kills every enemy in the game, the world map becomes distorted. Fess (still under Empress' control) will confront Magrut, becoming Dark Fess, and attempt to kill him until he (and by extension the player) gives up. If Dark Fess is defeated, she warns them that even she doesn't know what will happen next, and disappears. A fairy (now named a "Save Fairy") will appear, congratulate the player for "clearing the game" and give them the option of saving. The fairy reveals that she is actually Demon, an ancient and powerful succubus who was sealed by other succubi in the distant past. Demon explains that Magrut's actions have allowed her to break her seal. Additionally, she says that Magrut has fulfilled her goal of destroying the succubus world. She tells the player to close the game window, and can do this herself if the player tries to continue. If the player tries to reopen the game, they will be faced with Demon again, who offers to create a copy of the game world for them to continue playing in.

Gameplay
For more detail, see the Gameplay article

In general, the gameplay is similar to that of Lust Grimm. The player controls Magrut and can move around a 2D map to interact with people and objects. Enemies on the map will pursue the player and battle is initiated on contact. Battle is turn-based and revolves around making the enemy orgasm before they do the same to you.

There are several notable differences from the previous game:


 * There is a day-night cycle that progresses in real time. This affects background lighting, enemy strength (enemies do increased damage at night), whether or not certain enemies spawn, and the behaviour of certain NPCs.
 * There is also a cycle between four different colours of days, which proceeds in the order white -> yellow -> blue -> black. Some enemies or sidequests only appear on certain days.
 * For each battle, Magrut will be automatically be revived if his Vigor is reduced to 0, up to a maximum of two times. The first revival restores 50% of his Vigor, the second restores one-third.
 * The power of skills will increase the more the player uses them.
 * Enemies can now be defeated without attacking them through the new Conversation system. The player can use a variety of dialogue options to raise an enemy's opinion of them. By doing this enough they will trigger a "Friend Flag", which unlocks an option to end the battle. Winning in this method rewards the player with unique items, the ability complete certain sidequests, and is needed for the true ending.
 * Record Keeper Fairies no longer restore Magrut's Vigor and Energy when talked to.
 * Enemies appear in the Succubus House when befriended (whereas in Lust Grimm, this required specific items).
 * Bosses can be fought again immediately after being defeated for the first time (whereas in Lust Grimm, this required specific items). This is presumably to make it easier to befriend them.
 * The primary goal for the majority of the game is to gather materials for Fess Tower. Several other gameplay elements facilitate this: for example, befriending enemies increases the spawn rate of these materials.

Guides
Several official guides have been provided by 62studio on their blog, though note that these are in Japanese:
 * True End guide: http://625plus.blog.fc2.com/blog-entry-154.html.
 * Guide on how to befriend succubi: http://625plus.blog.fc2.com/blog-entry-156.html.
 * Fess Medal locations: http://625plus.blog.fc2.com/blog-entry-164.html (scroll down to the section titled "フェッセメダル配置場所").

For a guide in English, see this page.

Trivia

 * Lust Friend seems to have been inspired by Undertale, another video game that gives the player the option of befriending or killing enemies (with "Kill or be killed" as a recurring concept), with different endings depending on their choices. Both games also interact with their save files, such that the player can potentially make decisions that are irreversible unless the save files are removed. However, killing enemies requires much more effort in Lust Friend than in Undertale, and the former game allows the player to have multiple save files while the latter only allows one.