catch a monster update: Patch 0.45 Guide and Event Tips - Updates

catch a monster update: Patch 0.45 Guide and Event Tips

Explore the Catch a Monster Patch 0.45 update, including Coilwork City, Plagcannon, the Cog event, daily quests, shop rewards, and achievements.

2026-08-21
catch a monster Wiki Team
Quick Guide
  • catch a monster update: Patch 0.45 adds Coilwork City, a steampunk-themed island with new encounters.
  • New special spawn: Plagcannon is a highly durable monster with a thorn shield and possible knockback utility.
  • Cog event: Earn event coins through battles, dungeons, rifts, bosses, and daily quests.
  • Best priority: Complete all eight daily tasks when possible to unlock the event egg.
  • Progression reward: Splash Island achievements provide permanent buffs for every monster on your team.

catch a monster update: Patch 0.45 Overview

Patch 0.45 is an exploration-focused update for Catch a Monster, centered on a new island, a limited-time Cog event, and additional progression rewards. The official Catch a Monster experience page lists the game as an adventure experience built around defeating wild monsters, capturing them, discovering higher-rank pets, hatching eggs, and growing a squad.

Coilwork City introduces a new level range and a fresh destination for players who have progressed beyond earlier areas. The island is described as level 110, while monsters encountered in the area are around level 105. This makes the zone useful for preparing your team before future content arrives.

Video Highlights:

  • Coilwork City’s steampunk setting and new exploration route
  • Plagcannon’s health, thorn shield, and combat role
  • Cog coins, daily quests, event eggs, and shop rewards
  • Splash Island achievements and permanent team buffs
Patch FeatureWhat It AddsMain Player Goal
Coilwork CityNew island with level 110 contentExplore the zone and prepare for stronger enemies
PlagcannonNew special spawn with extreme durabilityFind, defeat, and capture it
Cog eventCoins, daily tasks, event egg, and rotating shopComplete activities before rewards refresh
Splash Island achievementsPermanent monster-team bonusesFinish listed achievement objectives
Limited-time shopPeriodic rotating purchasesCheck the shop when it opens
Exploration Tip

Treat Coilwork City as both a farming area and a preparation zone. Its level range suggests that future boss content may require a stronger team than the current island encounters.

Coilwork City uses a mechanical, steam-powered visual style. Notable scenery includes a floating airship or Zeppelin and a dedicated area where a future boss may appear. The boss is not confirmed as active in the available Patch 0.45 information, so focus on current monsters, event tasks, and exploration achievements rather than waiting for unreleased content.

How to Complete the Cog Event

The Cog event rewards normal play rather than requiring one specific activity. Players can earn Cog coins from dungeons, rifts, bosses, and ordinary monster battles. Daily quests add another reliable source of coins and provide the most important event milestone: an event egg for completing all eight tasks.

The first event cycle begins with an initial period of roughly eight hours before the regular daily rhythm starts. After that opening window, daily tasks are expected to refresh every 24 hours. The event shop also rotates, but the exact long-term refresh timing should be checked in-game because the initial shop refresh may not establish the permanent schedule.

1

Start the Event Cycle

Open the event interface as soon as the Cog event becomes available. Review all daily objectives and identify tasks that overlap with your normal farming route.

2

Earn Coins Through Combat

Run dungeons, rifts, bosses, and regular monster battles. Prioritize activities that complete multiple objectives at once instead of spending all your time on a single reward source.

3

Capture Three Plagcannons

Several daily objectives require you to capture three Plagcannons, not merely defeat them. Plan for repeated encounters and leave enough time for capture attempts.

4

Finish the Eight Daily Tasks

Five completed tasks provide a coin milestone, while all eight tasks unlock the event egg. The egg can provide event-related or special companions, including the new special spawn.

5

Spend Coins Carefully

Check the rotating event shop before purchasing. Compare permanent progression items, experience resources, and boosters against temporary convenience rewards.

Daily ProgressConfirmed BenefitRecommended Action
Five tasks5,000 Cog coinsReach this milestone during every cycle when practical
Eight tasksEvent egg plus additional coinsMake this the primary daily objective
Three Plagcannon capturesRequired for the full task routeCapture rather than only defeating the monster
Regular battlesCog coins from normal gameplayCombine with dungeon, rift, and boss objectives
Shop visitAccess to rotating rewardsCheck stock before committing coins
Capture Requirement

Defeating Plagcannon does not satisfy a capture objective. If the daily quest specifies three captures, verify the capture result after each encounter.

The event egg is especially valuable because it can provide the new special spawn, Ski Reaper, or Celestian with a chance of receiving a trait. The available information does not establish exact odds for every possible result, so treat the egg as a chance-based reward rather than a guaranteed source of one monster.

Plagcannon Build and Capture Strategy

Plagcannon is the headline special spawn of Patch 0.45. Its defining strength is survivability: a fully maxed version can reach several trillion health, with reported values around seven to eight trillion. It also has a skill that grants a thorn shield, allowing it to reflect incoming damage.

This makes Plagcannon a defensive specialist rather than an obvious damage dealer. It does not currently have a passive ability, which may limit its value compared with monsters that provide constant team utility. Another reported skill can knock enemies back, although that effect may work against a build that wants opponents to stay close and attack into the thorn shield.

Durability

Very high health gives Plagcannon a strong frontline identity and helps it survive extended encounters.

Thorn Shield

Damage reflection creates a defensive damage route, especially when enemies continue attacking the monster.

No Passive

The lack of a passive ability may reduce its automatic value in teams built around constant buffs.

Knockback Risk

Knockback can create distance from enemies, potentially reducing the number of attacks that trigger reflected damage.

Build FocusWhy It FitsMain ConcernRating
Maximum healthSupports Plagcannon’s frontline roleMay reduce offensive pressureExcellent
Thorn shieldConverts enemy attacks into reflected damageDepends on enemies continuing to attackGood
Redirect damage gearMay amplify the defensive damage planRequires testing with other effectsExperimental
Life leech interactionCould improve sustain if compatibleInteraction is not confirmedExperimental
Knockback-focused setupAdds control and breathing roomMay separate enemies from the tankSituational

A redirect-damage amulet is a natural experiment for Plagcannon because it complements the thorn shield concept. An Inferno Dragon Ring has also been suggested as a possible partner for reflected-damage setups. However, the interaction between reflected or redirected damage and life leech is not confirmed in the available update information.

Use a testing approach before investing valuable resources:

  • Compare thorn shield damage against ordinary attacks.
  • Test whether redirect effects stack or trigger separately.
  • Observe whether life leech responds to reflected damage.
  • Check whether knockback lowers the monster’s total reflected output.
  • Compare Plagcannon’s performance with a monster that has a reliable passive.
Build Recommendation

Start with survivability and thorn-shield testing. Add redirect-damage gear only after confirming that the effects improve real combat performance in your own encounters.

Capturing three Plagcannons may take time because the event requires successful captures rather than simple victories. Keep capture attempts aligned with your daily tasks, and avoid spending the entire event cycle on one encounter if other objectives remain unfinished.

Event Shop Priorities and Progression Rewards

The Cog event shop contains several useful options, including an ultimate mutation booster, Stellar Fruit, Potential Serum, and other rotating items. The ultimate mutation booster appears to require a large number of coins, so it should be treated as a long-term target rather than an automatic purchase every time the shop refreshes.

For newer players, Potential Serum may offer more practical value than an expensive endgame booster. Stellar Fruit is another useful option because it provides a large experience increase and can help bring developing monsters closer to the current content level.

Reward TypeBest UseSuggested Priority
Potential SerumImprove the potential of a developing monsterHigh for newer players
Stellar FruitProvide a large experience boostHigh when leveling a core monster
Ultimate mutation boosterPursue advanced mutation progressLong-term target
Event eggRoll for special companions and possible traitsHigh after completing daily tasks
Other rotating itemsFill specific team or progression needsSituational
Shop Planning

Do not spend every Cog coin immediately. Compare the current stock with your next progression goal, especially when saving for a high-cost mutation booster.

The event shop is described as a periodic shop with an initial refresh after approximately eight hours. A 24-hour rotation may follow, but the permanent timing should be verified through subsequent in-game refreshes. Record the shop timer when you enter the event so you can plan future visits accurately.

The limited-time shop is a separate feature. Available information indicates that its current selection is focused on Robux purchases and does not provide a clear free-to-play item. Because shop contents and availability can change, check the live interface instead of assuming that every rotation includes a valuable free option.

The update also adds achievements for Splash Island. These achievements can provide permanent buffs to every monster on your team, making them valuable even if the island is no longer your primary farming destination.

Patch 0.45 Progress Checklist:

  • Enter Coilwork City and inspect its level 110 area
  • Complete five Cog event tasks for the coin milestone
  • Complete all eight daily tasks to claim the event egg
  • Capture three Plagcannons for the relevant event objective
  • Finish Splash Island achievements for permanent team buffs

Best Route for New and Returning Players

Patch 0.45 is easier to manage when goals are divided by priority. New players should first strengthen a dependable squad and use event rewards to accelerate experience or potential. Returning players with established teams can focus on Plagcannon captures, event eggs, and permanent achievement bonuses.

Use the following route to avoid wasting daily progress:

Player TypeFirst PrioritySecond PriorityLong-Term Goal
New playerComplete accessible daily tasksBuy Potential Serum or Stellar FruitBuild a team for Coilwork City
Midgame playerFarm Cog coins through mixed activitiesCapture PlagcannonImprove core monsters with event resources
Endgame playerFinish all eight tasksTest thorn and redirect buildsSave for advanced mutation rewards
CompletionistExplore every new areaClear event and island achievementsCollect special spawns and traits

A mixed activity route is usually more efficient than repeating one battle type. Start with daily tasks, then choose dungeons, rifts, bosses, or ordinary monsters that satisfy multiple objectives. If a Plagcannon appears, prioritize the capture requirement before returning to routine farming.

The island itself should be approached as a preparation area. Monsters around level 105 and an island level of 110 indicate that players should bring a team capable of surviving stronger encounters. The future boss location suggests additional content may eventually arrive there, but it should not be treated as currently available until the game confirms it.

Efficient Daily Route

Review tasks, complete overlapping combat objectives, capture Plagcannon when available, then spend remaining time farming coins and checking the event shop.

For permanent account growth, do not ignore Splash Island achievements. A small bonus applied to every monster can become more valuable than a short-term consumable, particularly for players who regularly change their active squad.

Q: What is the main feature in the catch a monster update?

Patch 0.45 adds Coilwork City, a level 110 steampunk-themed island, along with Plagcannon, the Cog event, a rotating shop, and new Splash Island achievements.

Q: How do I get the Cog event egg?

Complete all eight daily event tasks. The event egg is listed as the reward for reaching the full daily objective milestone, and it can provide special companions or event-related monsters.

Q: Do I need to defeat or capture Plagcannon?

For the event objective requiring three Plagcannons, you need to capture them. Defeating the monster alone does not satisfy a capture requirement.

Q: Is Plagcannon the best monster in Patch 0.45?

Its extreme health and thorn shield make it promising for defensive or reflected-damage builds, but its lack of a passive and possible knockback behavior mean its final value depends on testing.