Chrono Days

A Dating Sim available by Pacthesis on Newgrounds, deviantArt, and her own site.

Saige (or whatever you call her) is an Ordinary High School Student. A time portal has opened in the sky, and her friend's older brother has invented a way to use it to travel one hundred years into the past. Naturally, Saige is volunteered to test it. After nearly being trapped in the past, she discovers that there are several cute guys available, both then and now.

Tropes used in Chrono Days include:

Aerith and Bob: Names range from very normal to normal-but-uncommon to downright unusual.
Artificial Human: Bianca is a doll brought to life by a wizard.
Babies Ever After: The endings. Except with Oz and Bianca, of course, because he's a robot and she's a living doll.
Bland-Name Product: The Firecat web browser.
Cast from Hit Points: Just talking to a guy will cost you 10HP!
Childhood Marriage Promise: With Teddy. Sealed with a Pinky Swear.
Continuity Overlap: The events of this game (at least the robots and the future technology) are influenced directly by the events of pacthesis's Project Toaster. There are also mentions of characters from Idol Days, one of the author's previous Dating Sims.
Crash Into Hello: Emmett crashes so hard it makes his head bleed.
Cute Clumsy Guy: Emmett.
- No Sense of Direction: Possibly one of the reasons he trips is because he intended to walk a different way.
Cutscene: When a character is ready to begin going on dates with Saige, one will occur.
Dead Little Sister: Roland returns home to find his sister has died.
Disco Tech: Playing a specific sequence of notes found on your computer will open the locked door in the manor. Bianca is hiding in there.
Gay Option: Bianca.
Goggles Do Nothing: When she gets stuck in the past, Nathan buys Saige some clothing that's more appropriate to the time period. It comes with a pair of goggles.
- Goggles Do Something Unusual: If you choose to fly with Roland, she'll at least use them to keep the wind out of her eyes.
Gratuitous Japanese: Mr. Toko, the shop manager, says "Out of all of the peeps around here, I gotta say that Emmett's the most 'kawaii'..."
He Knows About Timed Hits: Landon starts off explaining the Time Jumper quite normally ("Push this button to travel through time") and then suddenly goes off on things like Hit Points and Relationship Values.
Honor Before Reason: Emmett promised to return Saige's handkerchief. So, naturally, when the wind blew it out of his pocket, he just jumped off the moving train to catch it!
Identical Grandson: Emmett's grandson is identical except for his hair color.
I Gave My Word: Emmett runs on this.
Incredibly Lame Pun: When given a teabag as a gift, Emmett says it's "not really my cup of tea", then apologizes for the bad joke.
Jail Bait Wait: Landon asks Saige if they can get married one day and promises he'll wait for her forever if he needs to.
Kindhearted Cat Lover: Landon and Oz both like cats.
LOLcats: Oz finds them funny and bookmarks the site on Saige's computer.
Lonely Doll Girl: Bianca is an interesting twist on the trope: while indeed lonely and a girl, she is also the doll in question for her "father".
MacGuffin: The Time Jumper wristwatch that allows Saige to time-travel.
Magic Versus Science: In the past, a wizard can create an Artificial Human with the right spell. In the present, a company can create Ridiculously-Human Robots that can be bought for a mere $300. While the two are never stated as fighting outright, it seems that as Science Marches On, The Magic Goes Away.
Missing Mom: Bianca says she doesn't have a mother.
Multiple Endings: Eight characters (seven guys and a girl). Each one has three endings, the best of which earns a special bonus scene.
Pedo Hunt: Lampshaded by Mr. Toko, who says he won't go out with Saige because he doesn't want to appear on To Catch a Predator.
The Quiet One: Roland.
Ridiculously Human Robot|s: Oz
- Personality Chip: When asked if he feels emotions, he says he isn't sure, but he can imitate them, and points out that chemical reactions in the human brain that cause emotions aren't so different from his precoded data.
- Do Androids Dream?: He'll also eventually ask if Saige if she sees him as a person or just a robot. And in a more direct reference to the trope name, one of his first questions ponders if he is capable of dreaming, even though he doesn't actually need to sleep.
  - Just a Machine: He has a bit of an existential crisis upon meeting an upgraded "Oz Perfection" model that informs him he's just one of many identical copies, and suggests that thinking he is unique could be a bug that needs to be patched. Saige informs him that while he may look like the others, they don't share memories with her, and those experiences make him unique from any other Oz in existence.
Spoiled Sweet: Bianca.
Steampunk: The past. Complete with clothes with Too Many Belts and Goggles That Do Nothing, and a sidewalk with embedded moving cogs -- that do nothing.
Time Travel
Tron Lines: The present where Saige is from has them in spades. Oz has them on his arms.
Unusual Ears: Oz, being a robot, has glowing metalic "wings" in place of his ears that let him access WiFi, among other things.
Unusually Uninteresting Sight: Nathan doesn't seem to think the idea of a time-traveler is the least bit odd and accepts Saige's story without even a single "You're crazy!" And when she tells other characters she can time travel, they are equally understanding.
Visual Pun: Mr. Toko is bright yellow and the only character to drop a little Gratuitous Japanese. Emmett does a combo Lampshade Hanging / Stealth Pun when he describes him as "some kind of alien".
What Measure Is a Non-Human?: Oz, of course. Emmett mentions that a wizard could make "living dolls" and wonders if they're anything like real people; he says it makes him sad to think of it.