This guide provides comprehensive details on how to unlock each achievement within the base set, offering clear steps and strategies to ensure your success. Additionally, it includes useful information on the leaderboards for those interested in tracking their progress and competing at higher levels.

^{This guide mirrors the one available on the achievement set developer's Github}

• 💎 Achievement Guide

  _{General Info}

  • 📜 Co-op Participation Tracking
  • 📜 📜 Walkthroughs & Resources

  _Achievements

  • 🏆 Story Progression
  • 🏆 Story Ending
  • 🏆 Singleplayer/Gunslinger Challenges
  • 🏆 Secrets/Easter Eggs

• 🥇 Leaderboard Guide

• 📜 Credits

• ✏️ Footnotes

Set consists of xxxx achievements worth xxx points

Set released on DD MMMM YYYY

SOME_GENERAL_INFO_HERE

In this multiplayer cooperative subset, achievements are designed to unlock only if both players are actively contributing throughout a given Chapter. To promote fairness and teamwork, a participation tracking system is in place. This system monitors each player's engagement and disables achievement unlocks for the Chapter if it detects inactivity or a lack of contribution from one of the players.

Any achievement that requires completing a Chapter from start to finish in a single session will only unlock if both players meet the following criteria:

No Inactivity Over 30 Seconds

• Each player must remain active—if any player goes 30 consecutive in-game seconds without input, achievements for the current Chapter will be disabled. (All inputs are checked except Start/Select.)

Minimum Gameplay Input Count (30–100)

• Players must provide a minimum number of valid gameplay inputs (depending on Chapter length). Analog sticks and Start/Select are excluded to prevent idle movements from counting.

Combat Participation

• 5–10% of Total Kills: Each player must contribute at least a small share of the total kills.
• 10–50 Shots Fired: A basic level of offensive engagement is required.
• 5–10% Accuracy: Encourages players to aim and not fire randomly.

The exact values for each requirement scale based on Chapter length—longer Chapters demand slightly more input and involvement.

This participation check exists to prevent "freeloading"—where one player does all the work while the other remains idle. Since RetroAchievements has specific guidelines for multiplayer subsets, active participation from all players is a requirement to ensure the integrity of the achievement.

This system ensures that achievements are earned cooperatively, reflecting the effort of both players working as a team.

The zero-point achievement (a_INFOcoop) is included in the set to inform players of this system and ensure everyone is aware of the co-op participation rules.

If the explanation here doesn't suffice feel free to search up some guides, here are a few helpful resources:

• Retro Achievements Game Page
• Resource_1
• Resource_2
• Resource_3

• info_and_tip

• info_and_tip

The achievements under this category revolve around ...

Title (dev_id)	Guidance & Insights
title_placeholder a_placeholderID	GENERAL_EXPLANATION_HERE Fail Conditions - fail_condition_info If any fail condition is met, the player can easily retry the achievement by ... Achievement Tracking - A Trigger Indicator is displayed when ... - A Measured Indicator tracks ... up to ... Misc note ⁃ MISC_NOTE_HERE Developer note ⁃ DEVELOPER_NOTE_HERE

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The achievements under this category revolve around ...

Title (dev_id)	Guidance & Insights
title_placeholder a_placeholderID	GENERAL_EXPLANATION_HERE Fail Conditions - fail_condition_info If any fail condition is met, the player can easily retry the achievement by ... Achievement Tracking - A Trigger Indicator is displayed when ... - A Measured Indicator tracks ... up to ... Misc note ⁃ MISC_NOTE_HERE Developer note ⁃ DEVELOPER_NOTE_HERE

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GENERAL_INFO_ABOUT_ACHIEVEMENT_CATEGORY

GENERAL_INFO_ABOUT_ACHIEVEMENT_CATEGORY

• GENERAL_INFO_ABOUT_ACHIEVEMENT_CATEGORY
• GENERAL_INFO_ABOUT_ACHIEVEMENT_CATEGORY

Additional Notes

• ADDITIONAL_NOTES

• ADDITIONAL_NOTES

SubTitle: ADDITIONAL_NOTES

Title (dev_id)	Guidance & Insights
title_placeholder a_placeholderID	GENERAL_EXPLANATION_HERE Fail Conditions - fail_condition_info If any fail condition is met, the player can easily retry the achievement by ... Achievement Tracking - A Trigger Indicator is displayed when ... - A Measured Indicator tracks ... up to ... Misc note ⁃ MISC_NOTE_HERE Developer note ⁃ DEVELOPER_NOTE_HERE
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This category of achievements focuses on discovering various small secrets and hidden easter eggs throughout the game.

Additional Notes

• additional_notes

• additional_notes

Sub_Title: additional_notes

Title (dev_id)	Guidance & Insights
Info — Coop Participation Tracking a_INFOcoop	This zero-point achievement exists to inform players that all co-op achievements require active participation from both players. If one player is inactive or not engaging with combat, achievements for that Chapter will be disabled. Refer to Co-op Participation Tracking for details. Fail Conditions > Achievement Tracking
title_placeholder a_placeholderID	GENERAL_EXPLANATION_HERE Fail Conditions - fail_condition_info If any fail condition is met, the player can easily retry the achievement by ... Achievement Tracking - A Trigger Indicator is displayed when ... - A Measured Indicator tracks ... up to ... Misc note ⁃ MISC_NOTE_HERE Developer note ⁃ DEVELOPER_NOTE_HERE

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General_info_about_achievement_category

Additional Notes

• additional_notes

• additional_notes

Sub_Title: additional_notes

Title (dev_id)	Guidance & Insights
title_placeholder a_placeholderID	GENERAL_EXPLANATION_HERE Fail Conditions - fail_condition_info If any fail condition is met, the player can easily retry the achievement by ... Achievement Tracking - A Trigger Indicator is displayed when ... - A Measured Indicator tracks ... up to ... Misc note ⁃ MISC_NOTE_HERE Developer note ⁃ DEVELOPER_NOTE_HERE

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This section provides a detailed breakdown of the various leaderboards featured in the game, helping players understand how to compete, measure progress, and achieve high scores. Each leaderboard is thoroughly explained, covering its purpose, requirements, and how scores are calculated.

Inside, you’ll find:

• Leaderboard Overviews: A description of what each leaderboard represents, such as chapter completion challenges or special gameplay modes.
• Start Requirements: Information on how to activate the leaderboard, including prerequisites like starting conditions and restrictions on cheats.
• Cancel Conditions: Clear explanations of what actions or circumstances will deactivate or invalidate the player's leaderboard attempt.
• Submit Conditions: The steps necessary to successfully submit your score to the leaderboard.
• Score Calculation Details: A breakdown of how the player's score is determined, with formulas and factors like accuracy, damage taken, time spent, and other gameplay metrics.

With this guide, the player will not only understand the mechanics behind each leaderboard but also gain insights into how to optimize performance and climb the ranks. Whether aiming to perfect a story chapter on higher difficulties or striving for the top spot in specific challenges, this section equips you with everything you need to know.

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RA-User	Role
ASolidSnack	🟉 Achievement Set Developer | Badge Design | RA-Guide Author
placeholder_contributor	🟉 Contributor | Tester - Contributed by ... - Tested the ...

An indicator displayed by the Retro Achievements overlay, often used to track specific progress within an achievement.

Examples:

• Headshots - 7/12
• Enemies left - 11/100
• Accuracy - 47%
• Coins collected - 88%

An indicator displayed by the Retro Achievements overlay, typically used to show when a challenge achievement is available for unlocking or when it is currently active. If this indicator disappears before the achievement unlocks, it often signals a failure, indicating that a retry is necessary.

Examples:

• Enough headshots acquired, finish the mission
• All enemies killed, kill the boss
• Player has not yet taken a hit - for a hitless achievement
• All requirements are met, continue the game to unlock...