《Undertale》是个Toby Fox以tobyfox为化名制作及发表的电子角色扮演游戏。 游戏在2015年9月15日发售。

《Undertale》有着和一般电子角色扮演游戏些许不同的玩法。玩家有机会选择和敌人战斗、互动或是宽恕他们。 游戏多半采回合制。若选择攻击的话，玩家必须抓准时机攻击使得伤害增加；出手后便要开始闪避敌人的攻击，其中有部分类似东方系列中的弹幕。也有其他攻击以外的行动选项使玩家和敌人互动，如对话、倾听甚至是调情。如果一切顺利，敌人便会失去战意；玩家便可以宽恕他们来结束战斗，或是趁机进行攻击。在进入对战画面时，玩家的形象会化作一颗红心并以有限的HP和敌人对抗。

根据玩家的行为，有多种不同的路线和结局——和平主义路线、种族灭绝路线、多种不同类型的中间路线及隐藏的困难模式路线。

Travel across Europe as king of the road, a trucker who delivers important cargo across impressive distances! With dozens of cities to explore from the UK, Belgium, Germany, Italy, the Netherlands, Poland, and many more, your endurance, skill and speed will all be pushed to their limits. If you’ve got what it takes to be part of an elite trucking force, get behind the wheel and prove it!

· 游戏中玩家扮演一名黑客，接受记者的委托，完成一个个社工事件。
· 在整个过程中，玩家需要使用多种社工方法来达到最终目的。
· 每个社工方法都会有相应的使用条件，使用成功会获得线索。
· 游戏会对玩家的行为进行善恶判定，不同的判定会触发对应的剧情走向。

Ambient procedural mountain game.

Hi, Monika here!
Welcome to the Literature Club! It's always been a dream of mine to make something special out of the things I love. Now that you're a club member, you can help me make that dream come true in this cute game!

Every day is full of chit-chat and fun activities with all of my adorable and unique club members:

Sayori, the youthful bundle of sunshine who values happiness the most;
Natsuki, the deceivingly cute girl who packs an assertive punch;
Yuri, the timid and mysterious one who finds comfort in the world of books;
...And, of course, Monika, the leader of the club! That's me!

I'm super excited for you to make friends with everyone and help the Literature Club become a more intimate place for all my members. But I can tell already that you're a sweetheart—will you promise to spend the most time with me? ♥

This game is not suitable for children
or those who are easily disturbed.