Originally a short interactive story mod for Garry’s Mod (2018), the mod transformed into a standalone game in 2023. The premise is simple:
The game gained cult status for its emergent AI—Lily learns from your actions. Scold her too much, she gets sneaky. Give her candy, she hyperfocuses on breaking vases.
Gaming has seen its share of bizarre mods—from Thomas the Tank Engine replacing dragons in Skyrim to Shrek invading Resident Evil. But nothing could prepare the indie modding community for “My Little Sister Came to My House v205 Hop Full.” my little sister came to my house v205 hop full
At first glance, the name sounds like a lost slice-of-life visual novel. But after spending 40 hours exploring every rabbit hole (pun intended), I can confirm: this is a first-person survival chaos simulator where your seven-year-old sister brings her hyperactive pet bunny “Hop” to your meticulously organized home, and the version 205 update makes everything full hop—meaning every item, NPC, and surface gains a vertical bounciness stat.
Reddit user u/BounceHouseDad:
“My 8-year-old watched me play. She said ‘that’s exactly what I do to your office.’ I never felt so attacked. 10/10.”
Steam curator “Wholesome Chaos”:
“v205 hop full turns a sweet sibling sim into a slapstick physics playground. It’s like Goat Simulator had a baby with The Sims, and that baby drinks too much soda.”
Negative review from HardcoreGamer3000:
“Frustrating. Lily bounced my rare trading cards into the ceiling fan. Uninstalled.”