Init User Engine – Gamified, Fast, Frontend-First

Accounts, Login & Registration

• Frontend login & registration modal – no theme editing or template overrides required
• “Login After Register” option to automatically sign users in right after they create an account (disabled by default)
• Failed logins reopen the login modal on the current page with an inline error message, instead of redirecting to wp-login.php
• Cloudflare Turnstile captcha on registration, with a built-in math-question captcha as automatic fallback when no Turnstile keys are set
• Optional protection of the native WordPress login, registration, and lost-password forms ( wp-login.php ) using the same Turnstile setup
• “Forgot password?” form right inside the login modal, using the native WordPress reset flow (can be turned off; a custom Lost Password URL always takes priority)
• Custom redirect URLs for “Register” and “Lost password” links
• Optional “Require Login to Access Site” mode that gates the entire frontend behind the built-in login modal
• Ability to temporarily disable new registrations without affecting other plugins or WordPress core

Gamification

• EXP & Level system with hookable progression logic
• Coin & Cash dual-wallet system with transaction logs and a configurable exchange rate between the two currencies
• Daily check-in with streak milestones and an online-time bonus timer
• Optional Streak Recovery : members who miss a few days can spend Coin to keep their check-in streak alive (allowed missed days and Coin price per day are configurable, off by default)
• Built-in reward hooks for registration, daily login, comments, published posts, and completed WooCommerce orders (when WooCommerce is active)

VIP Membership

• VIP membership system with Coin-based, Cash-based, or combined purchase options
• Multiple configurable pricing tiers per duration, including a lifetime option
• VIP bonus multipliers for Coin/EXP earning
• Optional VIP purchase lock (globally disable new purchases) and stacking restriction

Referral

• Referral module with cookie-based signup tracking
• Separate, configurable rewards for both the referrer and the newly referred user

Redeem & VIP Codes

• Redeem Code / Gift Code module – code in, rewards out
• Dedicated VIP Codes module to grant VIP duration through a code
• One-click CSV export for both code lists (full list, streamed in batches, UTF-8 BOM, and sanitized against CSV/formula injection)

Inbox & Notifications

• Built-in inbox system with pagination and read/claim/delete actions
• Pinned messages that automatically unpin once read, or once their optional expiration time passes
• Admin panel to send custom notifications to selected users or all members, with priority and expiration
• Inbox Statistics dashboard (Users → Init User Engine → Inbox Statistics) with date-range filtering
• Optional automatic cleanup of read messages older than a set number of days (unread, pinned and assigned-code messages are always kept)

Admin Tools

• Manual Top-up tool for Coin/Cash (Users → Init User Engine → Top-up Coin/Cash)
• Per-user overview metabox on the WordPress profile/edit-user screen (level, wallet, VIP status, recent activity), with one-click Remove VIP, Ban Avatar Upload and Unlock Display Name actions

Developer-Friendly

• REST API for all features (read/write/modify)
• Action/filter hooks for full customization
• Pure Vanilla JS frontend – no jQuery, no server bloat

Developer Hooks

Filters

• init_plugin_suite_user_engine_online_minutes – Modify required online minutes after check-in
• init_plugin_suite_user_engine_vip_prices – Modify VIP package prices
• init_plugin_suite_user_engine_referral_rewards – Modify referral rewards
• init_plugin_suite_user_engine_localized_data – Modify frontend JS data
• init_plugin_suite_user_engine_calculated_coin_amount – Modify Coin reward before apply
• init_plugin_suite_user_engine_calculated_exp_amount – Modify EXP reward before apply
• init_plugin_suite_user_engine_exp_required – Modify EXP required per level
• init_plugin_suite_user_engine_checkin_milestones – Set milestone streak days
• init_plugin_suite_user_engine_format_inbox – Modify formatted inbox data
• init_plugin_suite_user_engine_render_level_badge – Customize level badge HTML
• init_plugin_suite_user_engine_inbox_insert_data – Modify inbox data before inserting into database
• init_plugin_suite_user_engine_validate_register_fields – Validate or modify registration fields before account creation
• init_plugin_suite_user_engine_after_register – Hook after successful user registration (pass user ID and submitted data)
• init_plugin_suite_user_engine_daily_tasks – Add or modify daily task list and logic
• init_plugin_suite_user_engine_captcha_bank – Extend or modify the internal captcha question bank used for fallback validation
• init_plugin_suite_user_engine_format_log_message – Customize transaction log message display with access to entry data, source, type, and amount
• init_plugin_suite_user_engine_should_keep_original – Override decision to keep original uploaded avatar (GIF or other formats)
• init_plugin_suite_user_engine_vip_expire_soon_threshold – Modify the threshold (in seconds) used to determine when VIP is considered close to expiration
• init_plugin_suite_user_engine_body_vip_classes – Add, remove, or modify VIP-related CSS classes applied to the <body> element
• init_plugin_suite_user_engine_theme_colors – Modify theme color system (primary and active colors)
• init_plugin_suite_user_engine_streak_restore_max_days – Modify how many missed check-in days a user may cover to keep their streak (return 0 to disable it for that user)
• init_plugin_suite_user_engine_streak_restore_cost – Modify the Coin cost of keeping a streak (receives total cost, missed days, and user ID)
• init_plugin_suite_user_engine_lostpassword_modal_enabled – Enable or disable the lost password form inside the login modal (receives the current value and the plugin settings)
• init_plugin_suite_user_engine_display_name_change_days – Modify how many days a member has to wait between two display name changes (receives the days from the settings and the user ID; 0 = unlimited)
• init_plugin_suite_user_engine_display_name_limit_applies – Return false to let a user (or role) change their display name freely (receives the current value and the user ID)
• init_plugin_suite_user_engine_inbox_auto_delete_days – Modify how many days read Inbox messages are kept before automatic deletion ( 0 = never)
• init_plugin_suite_user_engine_inbox_auto_delete_keep_meta_keys – Metadata keys that mark an Inbox message to keep during automatic deletion (default created_by )
• init_plugin_suite_user_engine_inbox_auto_delete_batch / init_plugin_suite_user_engine_inbox_auto_delete_time_limit – Ids per DELETE (default 5000) and seconds per run (default 20) of the automatic deletion
• init_plugin_suite_user_engine_dashboard_stats_max_age – How old (in seconds) the Dashboard Inbox widget numbers may be before a background refresh (default 900)

Actions

• init_plugin_suite_user_engine_level_up – When user levels up
• init_plugin_suite_user_engine_exp_added – After EXP is added
• init_plugin_suite_user_engine_transaction_logged – After Coin/Cash is logged
• init_plugin_suite_user_engine_exp_logged – After EXP log is recorded
• init_plugin_suite_user_engine_inbox_inserted – After new inbox message
• init_plugin_suite_user_engine_inbox_auto_deleted – After an automatic cleanup of read Inbox messages finishes (number deleted, cutoff)
• init_plugin_suite_user_engine_referral_completed – When referral is completed
• init_plugin_suite_user_engine_after_checkin – After user check-in
• init_plugin_suite_user_engine_streak_restored – After a user paid Coin to keep their check-in streak (user ID, missed days, cost, new streak)
• init_plugin_suite_user_engine_after_claim_reward – After user claims reward
• init_plugin_suite_user_engine_vip_purchased – After VIP is purchased
• init_plugin_suite_user_engine_add_exp – Triggered when adding EXP via hook
• init_plugin_suite_user_engine_add_coin – Triggered when ad