The Summer Update, tagged in-game as Update 4, is the biggest content drop Anime Astral Simulator has pushed so far. It adds an eighth world, a Beach Defense mode, a fresh gacha and sword banner, a rebuilt progression system, summer mounts, and a stack of bundles. It also brought seven new codes, and those are the fastest thing to grab before you do anything else.
Quick answer: Open the in-game menu, choose CODES, and redeem 21.5MVISITS, 22MVISITS, UPDATE4, SUMMEREVENT, SUMMERMOUNT, 18KFAVORITES, and 25KLIKES. Together they pay out 1,750 F2P Tickets and 35 Potions.
New Update 4 codes and rewards
Every Summer Update code hands out the same package of 250 F2P Tickets and 5 Potions. Redeem all seven and you walk away with enough tickets to fund several banner sessions on the new gacha.
| Code | Reward | Status |
|---|---|---|
| 25KLIKES | 250 F2P Tickets + 5 Potions | New |
| 18KFAVORITES | 250 F2P Tickets + 5 Potions | New |
| SUMMERMOUNT | 250 F2P Tickets + 5 Potions | New |
| SUMMEREVENT | 250 F2P Tickets + 5 Potions | New |
| UPDATE4 | 250 F2P Tickets + 5 Potions | New |
| 22MVISITS | 250 F2P Tickets + 5 Potions | New |
| 21.5MVISITS | 250 F2P Tickets + 5 Potions | New |
Older milestone codes such as 18MVISITS, UPDATE3.5, and the release code RELEASE (250 F2P Tickets + 14 Potions) still work if you never claimed them, so a returning player can bank a large ticket total in one sitting.
How to redeem Anime Astral Simulator codes
Codes are case-sensitive, so copy them character for character rather than retyping. If a valid code refuses to register, leave the server and rejoin a fresh one, then try again.
What the Summer Update adds
Update 4 layers a summer event on top of the existing world progression. Alongside World 8 and its quests, it introduces a new egg, index, and avatars, plus a Merchant and lobby titles. Here is the full feature set.
| Feature | What it adds |
|---|---|
| World 8 | New map with its own quests and progression |
| Beach Defense | New mode with its own achievements |
| World Boss | New boss encounter with dedicated accessories |
| New Gacha | Fresh summon pool for the new world |
| New Sword Banner | Additional weapon banner |
| New Progression System | Reworked advancement path |
| Summer Battle Pass | Seasonal track with pass pets and accessories |
| Merchant | New lobby vendor |
| Summer Potions | New potion type for the event |
| Summer Mounts | Coconut and Hamburger mounts |
| Pet Accessories | Kirito Art and Alice Art |
| Garden Art Shop | New UGC items added |
The update also includes a new index entry, new lobby titles, general performance improvements, UI fixes, and a round of bug fixes.
New bundles in Update 4
Five bundles arrived with the Summer Update, covering pets, accessories, potions, and the new world. The SUMMERMOUNT code ties directly into the mount content, so redeem it before you look at the mount bundle.
| Bundle | Focus |
|---|---|
| Waifu Bundle | New bundle waifu pet |
| Waifu Accessory Bundle | Bundle accessories |
| Summer Potion Bundle | Summer potions |
| World 8 Bundle | New world progression items |
| Summer Mount Bundle | Coconut and Hamburger mounts |
World 8 pets and gacha multipliers
World 8, Clover Island, carries the highest pet multipliers in the game and pairs with its own Magic Attribute Gacha. Each pet lists a base multiplier and a shiny multiplier, so shiny pulls roughly scale up your farming power by 1.5x over the base version.
| Pet | Rarity | Base / Shiny |
|---|---|---|
| Asta | Divine | x47.5k / x71.25k |
| Julies | Secret | x21.5k / x32.25k |
| Yame | Mythic | x5.6k / x8.4k |
| Mereoleona | Legendary | x3.1k / x4.65k |
| Zore | Epic | x2.5k / x3.75k |
| Noella | Rare | x2k / x3k |
| Finrel | Uncommon | x1.6k / x2.4k |
| Magne | Common | x1.4k / x2.1k |
Spend your fresh code tickets on the roles your squad is missing rather than spreading them evenly, and stack luck potions before you open the new gacha. To confirm World 8 unlocked correctly, check that its quest list appears and that the Magic Attribute Gacha is selectable from the banner menu.
New codes tend to drop with each milestone and update, so the fastest place to catch them is the official Discord for the game. Redeem the seven Summer codes first, then work through the new world, Beach Defense, and the summer battle pass while your ticket balance is high.
