[PC] Free - DRM-free - Influent - Humble Bundle

As with the Steam deal this is free on humble Bundle too although only for a limited time.
But the advantage over Steam is you get it in your HB library and hence DRM-free.

From the website:

Inspired by Dreamcast titles of old (namely Shenmue and Toy Commander) Influent immerses players in a fully interactive 3D environment where the names for absolutely every object in the game can be gleaned with a single click! In fact, even more information can be learned with a double-click! Every door, drawer, and cabinet can be opened with a right-click here and a right-click there, revealing more and more things to be learned! Packed to the brim with hundreds of native audio pronunciations (painstakingly recorded specifically for this game), Influent offers players a unique opportunity to enjoy learning both vocabulary and pronunciation in the language of their choice.

With 10 languages currently available for download, Influent combines the joys of playing a video game with the language learning process, resulting in real-life rewards and achievements that will remain with players for the rest of their lives.

Influent: Language Learning Redefined.

Audio from native speakers
Synonym swap functionality
Learn at your own pace!
Fully interactive modern apartment
Over 420 words to collect and master
Includes Nouns, Adjectives, and Verbs
15+ Languages to choose from (more to come!)

A BRIEF BACKGROUND
Influent is a Language Learning Game focusing primarily on vocabulary acquisition and pronunciation. It was initially developed in Japan at the University of Tsukuba's Entertainment Computing Laboratory under the Monbukagakusho Government Research Scholarship.

After research funding ran out, further funding from a wildly successful Kickstarter Campaign allowed for the completion of the game. A research paper on the ideas surrounding the game and its applications was published by the Information Processing Society of Japan (IPSJ), which can be viewed in its entirety here.

Andrew Cross is infuriated!

For three long years, he sat confined to his work, developing a device that he firmly believed to be a technological breakthrough in the way people would interact with the world around them. A device that could scan any object in the real world and then provide its name in any language! Duly dubbing his fancy new invention the "SanjigenJiten," Andrew arranged an appointment to demonstrate the device's amazing capabilities at the world's largest technology corporation, Technoglobe International.

But while on his visit, he fell for a girl he met in the lab, and while she stole his heart, someone else silently stepped in and stole his device! Now, Technoglobe has gone and swiftly marketed the SanjigenJiten as their own, even laying claim to the very name he had so cleverly concocted!

But Andrew Cross has a plan. He's made an even better version of his SanjigenJiten and launched an online campaign, swearing to learn 300 words in a foreign language to raise awareness of Technoglobe's blatant theft and prove his device really works! But does the SanjigenJiten really work? Can Andrew actually pull it off?!

Enjoy!