Rounds of Rain

A ROUNDS-inspired survivor for Risk of Rain 2. Draft illustrated cards during a run to change how you shoot, move and block. Version 0.4.0 is an experimental public build.

Features

• 72 cards with complete wording and four rarities, shown as an animated card hand.
• Physical bullets with gravity, bounce losses, homing and ways to build toward a flatter sniper trajectory.
• Block, lifesteal, shotgun, thruster, demon, mine, returning-shot, orbit-storage, portal and grapple mechanics.
• Procedural character animation: walking, aiming, recoil, blinking, landing, charging and held-ammo poses.
• Restrained effects with limits on projectiles, stored ammunition, mines and cosmetic markers.

Playing

Install through a mod manager and select ROUNDS. Start a fresh run after installing or updating. Two initial draws, one draw per level and two per teleporter completion are the default. Open the card hand with F6, then select a card by clicking or using the displayed number keys. F7 controls portal placement/reset when a portal card is owned. The run continues while the hand is open.

The four skills are Shoot, Block, Hop and Overload. Card wording explains advantages and tradeoffs. Build-changing cards are generally unique; other cards can stack. Legendary cards become eligible after eight owned cards.

Co-op

Every player, including the host, must install this mod at the same version. Share the same mod profile for consistent dependency versions. Decks are personal; the server owns card choices and combat state. Portal Relay affects teammates' ROUNDS projectiles, not other survivors' hitscan attacks.

This package installs the survivor and required libraries. It does not install the creator's large personal modpack or its compatibility changes.

Balance and performance

Card-only damage, health and attack-speed bonuses are bounded; normal Risk items still apply. Pellets and echoes share damage. Lifesteal and kill healing share a per-second budget. Secondary projectiles cannot recursively generate more secondary projectiles. Projectiles are limited to 64 per owner and 256 globally; each owner can have eight mines and twelve stored orbit shots. Small cosmetic markers are also capped.

Current verification and known limits

3,635 automated checks passed, including stat calculations for every card pair, rarity/uniqueness, owner rules and projectile branching limits. Registration, embedded art decoding and network serialization passed in the game. All 196 direct references to the installed RoR2 assembly resolved.

Full startup tests of the large personal profile timed out after 150 seconds before the final character-catalog callback. Batch-mode tests also reported audio, UI and asset/shader errors. These results do not establish normal rendered startup compatibility. R2API reports a 1.4.1 target while the tested game reports 1.5.0.

Live combat combinations, rendered animation quality, multiplayer synchronization and long-run performance have not been verified by the agent. Test with a small fresh profile before adding a large modpack. Custom card decks persist through stages and respawns within a run; saving those decks across closing the game with ProperSave is not implemented.

Credits and disclosure

Unofficial fan mod inspired by ROUNDS. ROUNDS belongs to Landfall and Risk of Rain 2 belongs to its respective owners. No ROUNDS game binaries, extracted artwork or other mod binaries are included. Card/skill illustrations and the survivor presentation are authored for this project. The implementation and documentation were created with substantial AI assistance; the Thunderstore listing should carry the AI Generated category.

Card pool