Happy Summer

by Caizer Games

Uncensored Windows Linux Mac Android
Versionv1.0
EngineRen'Py
Released2026-03-10
Updated2026-04-11
LanguageEnglish

About Happy Summer

Happy Summer is an adult visual novel made with Ren'Py by Caizer Games, presented with animated 3D computer graphics. You play a 37-year-old man living in a large house with his 19-year-old daughter Rosie, who writes stories, and his sister Lucy. After Rosie’s mother left four years earlier, the protagonist must care for her more than before. Lucy soon arrives, and the city contains other characters to spend time with. The play combines romance, management, and sandbox elements.

The current build is v1.0, released March 10, 2026, and development is ongoing. It is an English, uncensored release listed for Windows, Linux, Mac, and Android, though the changelog notes Android and Mac are not supported. The latest changelog entry is v0.7.5, a rework. Earlier entries added animations, events for Rosie, May, Mika, and Lucy, plus bug fixes.

Developer's description

This game is about a 37yo man, who lives in a big house with Rosie (daughter) and Lucy (sister). Rosie is a 19 yo beautiful blonde. She tries to write stories and maybe someday she will be able to write a book. Her mother left her 4 years ago and now you need to take care of her as never before. Also, soon Lucy will come to your house and you will have a lot of fun with her and with other characters in the city The high quality of the graphics, gameplay and story will not leave you indifferent.​

Download Happy Summer v1.0

Changelog

v0.7.5 Rework N/A v0.7.4 Rework Lucy call Error with finding person v0.7.3 Rework N/A v0.7.2 Rework 1 event for May and Mika. 1 event for May. Some previous bugs with saves has fixed (hopefully :'D). v0.7.1 Rework Added 3 animations. Added 1 event for Rosie. Fixed couple of bugs from previous updates and some small bugs. v0.7.0 Rework Added 5 mini-events (they change through progressing): 3 events for Rosie sleeping (you can press on her in the bed). 1 event when she in the toilet. 1 event when she is watering plants. Bug fixes (some of bugs mentioned before and couple of new one). Also I want to notify again about Android and Mac versions of the game - we are not supported this versions of the game. RenPy give us opportunity, but our coder can't make this versions as stable as Windows version, keep that in mind. He still trying to fix some bugs, but if it's working bad (or not working at all) - mostly we can't fix it. Only Windows version is what we working on and support. v0.6.9 Rework New event system: Added new event system with checkpoints and less buggy experience. Added event progression tracking. Relationship system is begin removed. Interface Overhaul: Redesigned main menu with a classic RenPy style. New in-game HUD for better readability and smoother navigation. Event panel added for easy access to ongoing and upcoming events. Inventory removed . Needs removed. Money removed. Improvements & Changes: Added rollback and rollforward support. Smoother transitions between menus and gameplay. Adjusted font sizes and button layouts for better accessibility. Bug Fixes: Fixed an issue causing events replaced each other. Resolved UI misalignment on certain screen resolutions. Patched a bug causing crashes during event transitions. Minor fixes. v0.6.8 Added 8 animations. Added 1 event for Rosie and Lucy. Last event from previous update for Lucy now a levelup event, she will get level 5 from it (saves from previous updates will work, the only difference in level 4 after this event, but you will have access to the next events and Lucy will get levelup after that). v0.6.7 Added 2 events for Lucy Bug fixes v0.6.6 N/A v0.6.5 N/A v0.6.4 N/A v0.6.3 Added 4-7 animations. Added 1 event for Rosie. Added All events button in main menu (now you can replay almost every event from your save). v0.6.2 Added 1 mini event for Rosie (for future event). Added 2 options in events menu (only hot events or almost all events). v0.6.1 N/A v0.5.9 Added 2 animations. Added 1 event for Lucy. v0.5.8 Added 1 event for May. Bug fixes v0.5.7 Added level up event for Mika. Added 1-4 animations. v0.5.6 Added 1 event for May. Bug fixes. v0.5.5 Added 1 event for Mika and Rosie. Animations 0-3 (?) v0.5.4 Added 3 animations. Added 1 event for May. v 0.5.3 Added 1 event for May. Bug fixes v 0.5.2 Added 1 event for Mika. Added 1 event for May. v0.5.1 Added 2 events for Mika. Bug fixes. v0.5.0 Added 2 animations. Added 1 event for May. v0.4.9 Added 2 events for May. Bug fixes. v0.4.8 Added 2 events for Lucy. Added ~3 animations. Added 2 events for May. v0.4.7 Added mini-game on PC v0.4.6 Added 1 event for Rosie. Added 3 animations. Bug fixes. v0.4.5 Added 3 events for May. Bug fixes. v0.4.4 Added 1 event for May. Added minigame in this event. MC can sleep in living room. Bug fixes. v0.4.3 Added 3 events for May. Bug fixes. v0.4.2 Added 2 events for May. Bug fixes. v0.4.1 Added 1 dialogue for Rosie. Added 1 event for Lucy. Added 2 animations. Rosie dialogue fix. Fixed bug when you can stuck on the map. Other bug fixes. v0.4.0 Added 1 dialog for Mary. Added 2 events for May. Added 1 event for Mika. v0.3.9 Added 2 animations. Added 1 event for Mika v0.3.8 Added 1 event for Rosie. Added 4 animations. New system for available events. (Now you can see exclamation mark in relationship menu on each character if you can start new event) Gallery fix for previous update. Fixes for some relationship issues. (To be guaranteed not to be missed some events - better to start a new game) Other bug fixes. v0.3.7 Added 1 event for Rosie. Added 1 event for May. Added 1 event for Mika. v0.3.6 Added 3 pages for saving/loading slots (5 in total). Added 2 dialogs. Added 1 event with Lucy. Added 2 events with May. Added new music. Gallery fix for previous update. Other Bug fixes. v0.3.5 Added 6-8 animations. Added 4 events for Lucy. Fixed a lot of text issues. Other Bug fixes. v0.3.4 Added new character May. Added new location Hospital. Added 2 events for May. Added 1 animation. Added 1 event for Mika. Added new page for saving/loading slots. Some gallery fixes. Other Bug fixes. v0.3.3 Added 4 new events for Mika. Bug fixes. Added in 0.3.3 a "Free" game mode for starting the game. This mode for those who don't want to worry about their needs, mood and have no money limit. I hope it's can help some players who don't want to spend a lot of time and want take the same progress. I know some players don't want to start the game again and again, so... hope it helps^^ v0.3.0 Added 4 events for Mika. Added new place Hotel. Game size optimization. Bug fixes. v0.2.9 Added 3 events for Rosie. Added 1 event for Lucy. Bug fixes. v0.2.8 Added character icons to the map. (Now you can see where each character in each time of the day) Added 2 events for Mika. Added new style of Mika to the Library. Bug fixes. v0.2.7 - Added gallery to the main menu. (First you need to open your save and go to the main menu, now it's updated) - Added 2 events with Mika. - Added new dialog with Mika. - Bug fixes. v0.2.6 Added gallery to the main menu. (First you need to open your save and go to the main menu, now it's updated) Added 2 events with Mika. Added new dialog with Mika. Added 2 events with Lucy. Added 1 event for Rosie. Bug fixes. v0.2.5 Added 2 events for Lucy at lvl 3. Added 2 events for Rosie at lvl 4. Added new gameplay feature. Bug fixes. v0.2.4 N/A v0.2.3 [*]Added event for Lucy at lvl 2. [*]Added Park location on the map. [*]Added new music. [*]Added event with Lucy for reaching lvl 3. [*]Bug fixes. v0.2.2 [*]Added 4 events for Lucy at lvl 2. [*]Added more ways for growing % of relationship for Rosie at lvl 3. [*]Bug fixes. v0.2.0 Fixed [*]Added 3 new events with Rosie [*]Added new animation. [*]Bug fixes. v0.1.9 [*]Added new event with Rosie. [*]Added new animation. [*] Added new Walkthrough . Not here. [*]Added new music. [*]Fixed important bug of selecting items. [*]Other bug fixes. v0.1.8 [*]Added 2 new animations. [*]Added new event with Rosie (morning after buying swimsuit). [*]Added new dialog and event with Rosie at the daytime after previous event. [*]Added new music. [*]Fixed game crash at the cafe after Lucy talk (lvl 2). [*]Other bug fixes. v0.1.7 [*]Added Beach location on the map (without events). [*]Added 2 new events for Rosie at lvl 3 (first meet at lvl 3 daytime and new dialog). [*]Bug fixes, as always. v0.1.6 Added new event with Lucy. Added event for Lucy for taking lvl 2. Fixed important bug associated with Rosie's main quest. Some other bug fixes. v0.1.5 Added new toilet event with Rosie at lvl 2. Added new gym event with Rosie at lvl 2. Added event for Rosie for taking lvl 3. Some important bug fixes. v0.1.4 Added new shower event with Rosie at lvl 2. Added Library location on the map. Added new character Mika. Added finding book event for Rosie. Some bug fixes. v0.1.3 Added event with Lucy for going to the cafe. Added names of locations on the map. Added Cafe location on the map. Added new event with Lucy. Added working time for Lucy (day after day). Bug fixes. v0.1.2 [*]Added Rosie event in her room at lvl 2. [*]Added event for searching book [*]Added Rosie event in the corridor at lvl 2. [*]Added Rosie new dialog choice when she with laptop at lvl 2. [*]Added choice for searching job for Lucy at the PC. [*]Added at the PC choice "Work hard" for make more money and spend 2 timepoints. [*]Added choice of dialog with Lucy. [*]Bug fixes. v0.1.1 [*]Added Save menu on RMB (Not in dialogs). [*]Added Android version. [*]New Character Lucy (She'll be come right after you receive Rosie's relationship level 2). [*]Lucy's day-cycle events. [*]Faster growing of relationship level. [*]More variants of dialogs before choices with Rosie in lvl 1. [*]Added new scene for watching TV with Rosie in lvl 1 (No more zebras after first time). [*]Some little uncompleted scenes for Rosie lvl 2 and Lucy lvl 1. [*]Added new animation for Rosie into the gym event. [*]Some bug fixes. v0.1 First release.

Player reviews

Player rating 4.0 / 5 · 20 ratings
Written reviews 20 · avg 3.7★
Positive (4–5★) 65%
Latest review 2026-04-12

What players say

Most reviewers rate it positive, praising visuals and animations, while criticism focuses on bugs, grind, and story.

5★ 6
4★ 7
3★ 3
2★ 3
1★ 1

Players like

  • Attractive visuals, models, and animations
  • Slow burn relationship building
  • Less grind than older versions
  • Cute character models

Common complaints

  • Bugs, crashes, and softlocks
  • Repetitive grind and needs management
  • Weak or basic story

Best for players who enjoy slow burn incest, attractive visuals, and sandbox grind.

Summarised from 20 written player reviews.

DiuLei777 2026-04-12 ★★★★★
The story's so so, love all the girls especially May, but unfortunately, i have some things that i personally disliked from this game that ruin the score for this game: 1. It is still a buggy mess, where sometimes it…
Outdoorpoet8 2026-04-12 ★★★★★
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Potetoouu 2026-04-11 ★★★★★
game itself is kind of a slow burn one, and that's nice. models might be not too realistic but it doesnt need to be. it has a style, its not unnecessarily long either, i like it. it doesnt deserve 5…

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